677 results match your criteria: "Digestive Diseases Center[Affiliation]"

The prognostic implications and tumor-promoting functions of CHSY3 in gastric cancer.

Front Immunol

May 2024

Department of Gastrointestinal Surgery, Department of General Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China.

Chondroitin sulfate synthase 3 (CHSY3) is an important enzyme that regulates glycosylation, but its role in tumors has not been determined. Here, we showed that high CHSY3 expression promotes proliferation in gastric cancer (GC) cells and is associated with poor prognosis in GC patients. We analyzed the immunohistochemistry data of 150 gastric cancer patients to determine the clinicopathological and survival significance of CHSY3.

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  • * A modified scale (m-ES) was created to quantify symptoms like dysphagia, regurgitation, and chest pain, revealing that nearly 5% of patients still experience significant persistent symptoms affecting their QOL.
  • * Results indicated that the m-ES correlates strongly with symptom severity and is more effective than the original Eckardt score in predicting persistent symptoms, with dysphagia and chest pain being the most common lingering issues.
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3D bioprinting platform development for high-throughput cancer organoid models construction and drug evaluation.

Biofabrication

June 2024

School of Biomedical Engineering, Shenzhen Campus of Sun Yat-Sen University, No. 66, Gongchang Road, Guangming District, Shenzhen, Guangdong 518107, People's Republic of China.

The evaluation of anti-tumor drugs is critical for their development and clinical guidance. Tumor organoid models are gaining increased attention due to their ability to better mimic real tumor tissues, as well as lower time and economic costs, which makes up for the shortcomings of cell lines and xenograft models. However, current tumor organoid cultures based on the Matrigel have limitations in matching with high-throughput engineering methods due to slow gelation and low mechanical strength.

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Extracellular vesicles containing MFGE8 from colorectal cancer facilitate macrophage efferocytosis.

Cell Commun Signal

May 2024

Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China.

Background: Colorectal cancer (CRC) commonly exhibits tolerance to cisplatin treatment, but the underlying mechanisms remain unclear. Within the tumor microenvironment, macrophages play a role in resisting the cytotoxic effects of chemotherapy by engaging in efferocytosis to clear apoptotic cells induced by chemotherapeutic agents. The involvement of extracellular vesicles (EVs), an intercellular communicator within the tumor microenvironment, in regulating the efferocytosis for the promotion of drug resistance has not been thoroughly investigated.

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  • A study evaluated the efficacy and safety of first-line therapies for hepatocellular carcinoma (HCC), specifically comparing atezolizumab/bevacizumab (atezo/bev) and lenvatinib, focusing on bleeding and thromboembolic events.
  • A total of 464 patients from seven centers in Germany and Austria were analyzed, revealing that bleeding and thromboembolic events occurred in similar rates for both treatments within 6 months.
  • The findings suggest that safety concerns regarding bleeding and thromboembolic events might not significantly influence clinical decisions when selecting between atezo/bev and lenvatinib for HCC treatment.*
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The efficacy of neoadjuvant chemotherapy (NACT) in patients with advanced gastric cancer (GC) varies greatly. Thus, we aimed to verify the predictive value of tumor-infiltrating immune cells (TIICs) on the treatment response to NACT and the prognosis of patients with advanced GC, and to explore the impact of NACT on the tumor immune microenvironment (TIME). Paired tumor tissues (pre- and post-NACT) from patients with advanced GC were collected for this study.

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Clinical outcome of non-curative endoscopic submucosal dissection for early gastric cancer.

J Gastrointest Oncol

April 2024

Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Diseases Center, Beijing Key Laboratory for Precancerous Lesion of Digestive Disease, Beijing, China.

Background: Early gastric cancer (EGC) is defined as cancer cells confined to the mucosal or submucosal layer, irrespective of size or presence of lymph node metastasis. The recent EGC endoscopic submucosal dissection (ESD) and endoscopic mucosal resection (EMR) guidelines (2021 Japan Gastroenterological Endoscopy Society (JGES) guidelines, 2nd edition) revised the concept from "endoscopic curative/non-curative resection" (NCR) to "endoscopic curability (eCura)". Under this, eCuraA and eCuraB signify curative resections (CRs), while eCuraC (including eCuraC-1 and eCura-C2) indicate NCRs.

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Background: Advanced unresectable gastric cancer (GC) patients were previously treated with chemotherapy alone as the first-line therapy. However, with the Food and Drug Administration's (FDA) 2022 approval of programmed cell death protein 1 (PD-1) inhibitor combined with chemotherapy as the first-li ne treatment for advanced unresectable GC, patients have significantly benefited. However, the significant costs and potential adverse effects necessitate precise patient selection.

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Objectives: The absence of non-invasive biomarkers for the early diagnosis of colorectal cancer (CRC) has contributed to poor prognosis. Extracellular vesicles (EVs) have emerged as promising candidates for cancer monitoring using liquid biopsy. However, the complexity of EVs isolation procedures and the absence of clear targets for detecting serum-derived EVs have hindered the clinical application of EVs in early CRC diagnosis.

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  • The study evaluated the use of ultrathin gastroscopes in the endoscopic pressure study integrated system (EPSIS) for assessing lower esophageal sphincter function by monitoring intragastric pressure.
  • A retrospective analysis of 30 patients showed that the pressure metrics obtained with ultrathin gastroscopes significantly correlated with those from regular gastroscopes, although the values were consistently lower with the ultrathin option.
  • The results suggest that ultrathin gastroscopes are a viable alternative for EPSIS, supporting their use in diagnosing lower esophageal sphincter issues.
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Background: As a binding protein of Ki67, NIFK plays an important role in the mitosis of cells and is closely related to the progression of specific types of tumors. However, there is still a lack of systematic analysis of NIFK in pan-cancer and insufficient research to explore its role in human tumors.

Methods: We systematically evaluated the pan-cancer expression and mutation of NIFK in human cancers using data from The Cancer Genome Atlas (TCGA) through large-scale bioinformatics analysis.

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  • The study evaluated treatment strategies for nonfunctioning small pancreatic neuroendocrine neoplasms (NF-spNENs) in a large Japanese cohort, with a focus on surgically resected cases.
  • A total of 606 NF-spNENs were analyzed, revealing that tumor grade and size significantly impacted outcomes, including lymph node metastasis and recurrence.
  • Findings suggest that treatment plans should prioritize personalized approaches based on tumor grading and size rather than relying solely on size for decision-making.
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Hepatitis B virus (HBV) reactivation is a clinically significant challenge in disease management. This review explores the immunological mechanisms underlying HBV reactivation, emphasizing disease progression and management. It delves into host immune responses and reactivation's delicate balance, spanning innate and adaptive immunity.

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  • The gut-brain axis plays a role in neuropsychiatric diseases like autism spectrum disorder (ASD), and the study focuses on the genetic variation 16p11.2 linked to ASD.
  • Using a mouse model with the 16p11.2 duplication, researchers found that these mice exhibited ASD-like behaviors and structural changes in their gut microbiota, indicating dysbiosis and reduced biodiversity.
  • Metabolomic analysis revealed 19 altered metabolites and disruptions in neurotransmitter pathways, particularly those involving histamine, suggesting connections between gut microbiota and ASD that could inform future treatments.
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Inflammatory bowel diseases (IBD), including Crohn's disease and ulcerative colitis, are lifelong conditions with no definite cure. Several studies demonstrated that patients with IBD more frequently experience symptoms of common mental disorders, such as anxiety and depression, because of bidirectional communication through the gut-brain axis and the chronicity of symptoms, as well as because of impaired quality of life and reduced social functioning. However, psychological conditions of affected patients are often underestimated and not fully considered.

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Spondyloarthritis (SpA) is the most frequent extraintestinal manifestation in patients with inflammatory bowel diseases (IBD). When IBD and spondyloarthritis coexist, musculoskeletal and intestinal disease features should be considered when planning a therapeutic strategy. Treatment options for IBD and SpA have expanded enormously over the last few years, but randomized controlled trials with specific endpoints focused on SpA are not available in the IBD setting.

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The interplay between alterations in esophageal microbiota associated with Th17 immune response and impaired LC20 phosphorylation in achalasia.

J Gastroenterol

May 2024

Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka-shi, Fukuoka, 812-8582, Japan.

Article Synopsis
  • Achalasia is an esophageal disorder with unclear causes, and the study investigates how changes in smooth muscle contractions and inflammation contribute to its development, along with the role of esophageal microbiota.
  • Analysis of esophageal samples from patients showed that those with achalasia had significantly lower levels of myosin light chain phosphorylation compared to healthy controls, along with increased levels of certain inflammatory cytokines.
  • The findings suggest that both the hypophosphorylation of myosin light chains and changes in the esophageal microbiota may play a role in the impaired contractility and worsening of achalasia symptoms.
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Background: Activation of the Hedgehog signaling pathway is linked to the initiation and development of human hepatocellular carcinoma (HCC). However, its impact on clinical outcomes and the HCC microenvironment remains unclear.

Methods: We performed comprehensive analyses of Hedgehog pathway genes in a large cohort of HCC patients.

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Exosome circATP8A1 induces macrophage M2 polarization by regulating the miR-1-3p/STAT6 axis to promote gastric cancer progression.

Mol Cancer

March 2024

Digestive Diseases Center, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, China.

Circular RNAs (circRNAs) play important roles in gastric cancer progression but the regulatory role of circRNAs in controlling macrophage function remains elusive. Exosomes serve as cargo for circRNAs and play a crucial role as mediators in facilitating communication between cancer cells and the tumor microenvironment. In this study, we found that circATP8A1, a previously unreported circular RNA, is highly expressed in both gastric cancer tissues and exosomes derived from plasma.

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Simultaneous gastric, pancreatic, and renal metastasis from poorly differentiated hepatocellular carcinoma.

Clin J Gastroenterol

June 2024

Division of Gastroenterology, Department of Internal Medicine, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawaku, Tokyo, 142-8666, Japan.

Article Synopsis
  • A 75-year-old woman experienced significant symptoms like right upper abdominal pain, appetite loss, and weight loss, leading to a hospital referral due to suspected sepsis.
  • Imaging tests revealed potential metastatic tumors in her liver, lungs, and kidneys, with further examinations confirming poor carcinoma in both liver and gastric biopsies.
  • Despite efforts to treat her, the patient's condition deteriorated rapidly, resulting in her death; autopsy revealed the presence of metastatic gastric, renal, and pancreatic tumors originating from hepatocellular carcinoma (HCC), as well as a primary lung adenocarcinoma.
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Background: Increasing evidence is available about the presence of increased serum concentration of immunoglobulin (Ig) free light chains (FLCs) in both atopic and non-atopic inflammatory diseases, including severe asthma, providing a possible new biomarker of disease.

Methods: We analyzed clinical and laboratory data, including FLCs, obtained from a cohort of 79 asthmatic subjects, clinically classified into different GINA steps. A control group of 40 age-matched healthy donors (HD) was considered.

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  • RNA methylation plays a crucial role in tumor progression, yet its specific influence on microsatellite instability (MSI) in colorectal cancer (CRC) is not fully understood, prompting further investigation.
  • This study analyzed the impact of RNA methylation-related genes on patient outcomes and immunotherapy responses in CRC patients with low (MSI-L) or stable (MSS) microsatellite instability, comparing them to those with high instability (MSI-H).
  • The research developed an MSI-RMscore to predict patient risks and outcomes, revealing that a high-risk group had poorer survival and lower immunotherapy effectiveness, while highlighting the potential of INHBB and SOWAHA as therapeutic targets to improve treatment responses.
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