297 results match your criteria: "Department of Gastroenterology of National Institute of Gastroenterology "S. de Bellis"[Affiliation]"

Claudin 18.2: An attractive marker in pancreatic ductal adenocarcinoma.

Oncol Lett

March 2025

Department of Pathology, National Institute of Gastroenterology, IRCCS 'S. de Bellis' Research Hospital, Castellana Grotte, I-70013 Bari, Italy.

Pancreatic ductal adenocarcinoma (PDA) is a highly aggressive tumor with limited treatment options. Zolbetuximab, a monoclonal antibody against the tight junction protein Claudin 18.2 has recently been developed.

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Article Synopsis
  • Very low-calorie ketogenic diets (VLCKD) effectively aid weight loss in obese individuals and can decrease liver condition risks.
  • Small extracellular vesicles (sEVs) from serum are studied in obese adults to see how they affect liver fibrosis and inflammation, with participants divided into low and high fibrosis risk groups.
  • Results show that sEVs from low-risk patients improved liver health markers, while those from high-risk patients worsened inflammation and fibrosis signals, stressing the importance of assessing sEVs alongside traditional methods like FibroScan.
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Studies conducted in the last few years have suggested a connection between clinical outcomes and the time of immune checkpoint inhibitors (ICIs) infusion. However, few data are available regarding the differences between early and late time-of-day (ToD) administration in metastatic renal cell carcinoma (mRCC) patients receiving immunotherapy and immune-based combinations. In this meta-analysis, we aimed to fully investigate the influence of timing of administration on the efficacy of mRCC immunotherapy, by comparing early ToD versus late ToD dosing in this setting.

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Immunobiology of biliary tract cancer and recent clinical findings in approved and upcoming immune checkpoint inhibitors.

Expert Opin Biol Ther

December 2024

S.S.D. C.O.r.O. Bed Management Presa in Carico, TDM, IRCCS Istituto Tumori "Giovanni Paolo II", Bari, Italy.

Introduction: Recently, immunotherapy has offered new hope for treating biliary tract cancer (BTC). However, several issues are to be considered, including the lack of validated predictive biomarkers that could help to identify patient groups which are most likely to benefit from such therapeutic approaches.

Areas Covered: In the current article, we will provide an overview of recent results and ongoing and future research directions of immunotherapy in BTC, with a special focus on recently published, practice-changing data, and ongoing active and recruiting clinical trials.

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Treatment options for intrahepatic cholangiocarcinoma (iCCA), a highly malignant tumor with poor prognosis, are limited. Recent developments in immunotherapy and immune checkpoint inhibitors (ICIs) have offered new hope for treating iCCA. However, several issues remain, including the identification of reliable biomarkers of response to ICIs and immune-based combinations.

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Article Synopsis
  • Cancer-associated fibroblasts (CAFs) contribute to the aggressive nature and treatment resistance of intrahepatic Cholangiocarcinoma (iCCA), prompting research into the effects of the Notch1 inhibitor Crenigacestat on this interaction.
  • Using both 2D and 3D in vitro models, along with a xenograft setup, the study found that CAFs enhance iCCA cell migration and growth, but Crenigacestat effectively inhibits this cross-talk and reduces tumor growth and fibrosis.
  • Overall, targeting the hCAF/iCCA interaction with Crenigacestat presents a promising approach to slowing cancer progression and altering critical cell cycle pathways.
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Inorganic Polyphosphate Promotes Colorectal Cancer Growth via TRPM8 Receptor Signaling Pathway.

Cancers (Basel)

September 2024

Personalized Medicine Laboratory, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013 Bari, Italy.

Background: Colorectal cancer (CRC) is characterized by a pro-inflammatory microenvironment and features high-energy-supply molecules that assure tumor growth. A still less studied macromolecule is inorganic polyphosphate (iPolyP), a high-energy linear polymer that is ubiquitous in all forms of life. Made up of hundreds of repeated orthophosphate units, iPolyP is essential for a wide variety of functions in mammalian cells, including the regulation of proliferative signaling pathways.

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The etiology of Inflammatory Bowel Disease (IBD) is not fully understood but is believed to involve a dysregulated immune response to intestinal microbiota in genetically susceptible individuals. Individuals with IBD are at increased risk of infections due to immunosuppressive treatments, comorbidities, and advanced age. Current evidence indicates that IBD patients are not at higher risk of SARS-CoV-2 infection compared to the general population, though the risk of severe outcomes remains debated.

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Role of Extracellular Vesicles in Crohn's Patients on Adalimumab Who Received COVID-19 Vaccination.

Int J Mol Sci

August 2024

Laboratory of Personalized Medicine, National Institute of Gastroenterology IRCCS "S. de Bellis", Research Hospital, Via Turi 27, Castellana Grotte, 70013 Bari, Italy.

Article Synopsis
  • Crohn's disease (CD) is an inflammatory bowel disease that can affect the gastrointestinal tract and cause complications outside of it, and some patients have shown adverse effects after receiving the Pfizer-BioNTech mRNA vaccine.
  • Following vaccination, some CD patients have experienced a reduced effectiveness of the biological drug Adalimumab and a worsening of their condition, correlated with changes in intestinal permeability and protein expression.
  • The study aims to explore the effects of the SARS-CoV-2 Spike protein, particularly through extracellular vesicles, on the onset of Crohn's disease exacerbations and the potential impact on existing treatments.
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Extracellular Vesicles Modulate Liver Cells Viability and Reactive Oxygen Species in Patients Following a Very Low-Calorie Ketogenic Diet.

Nutrients

July 2024

Laboratory of Molecular Medicine, National Institute of Gastroenterology IRCCS "S. de Bellis", Research Hospital, Via Turi 27, 70013 Castellana Grotte, Italy.

Article Synopsis
  • The VLCKD diet helps in fat mobilization and reduces inflammation and liver issues in patients.
  • The study focuses on how circulating extracellular vesicles (EVs) affect certain cellular processes and responses in patients undergoing an 8-week VLCKD regimen.
  • Results indicate that while exosomes decrease cell viability, microvesicles do not, and reactive oxygen species (ROS) levels are consistent markers of diet adherence and may correlate more reliably with improvements in fibrotic response compared to ketone body levels.
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Autotaxin (ATX) is a member of the ectonucleotide pyrophosphate/phosphodiesterase () family; it is encoded by the gene. ATX is a secreted glycoprotein and catalyzes the hydrolysis of lysophosphatidylcholine to lysophosphatidic acid (LPA). LPA is responsible for the transduction of various signal pathways through the interaction with at least six G protein-coupled receptors, LPA Receptors 1 to 6 (LPAR1-6).

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Management of severe thrombocytopenia poses significant challenges in patients with chronic liver disease. Here, we aimed to evaluate the first real-world European post-marketing cohort of cirrhotic patients treated with lusutrombopag, a thrombopoietin receptor agonist, verifying the efficacy and safety of the drug. In the REAl-world Lusutrombopag treatment in ITalY (REALITY) study, we collected data from consecutive cirrhotic patients treated with lusutrombopag in 19 Italian hepatology centers, mostly joined to the "Club Epatologi Ospedalieri" (CLEO).

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Purpose: To report response rates (using mRECIST), overall survival (OS), progression-free survival and local tumour recurrence-free survival (LRFS) of balloon-occluded transarterial chemoembolisation (bTACE) for hepatocellular carcinoma (HCC).

Materials And Methods: Patients from five European centres treated with conventional or drug-eluting microsphere bTACE for HCC were included, and patients already lost to follow-up before 12 months were excluded. Possible factors contributing to LRFS and OS were evaluated with Cox proportional hazards models.

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Background: The natural history and pathophysiology of diverticular disease (DD) are still uncertain. An ex-vivo human complicated DD (cDD) model has recently shown a predominant transmural oxidative imbalance. The present study aims to evaluate whether the previously described alterations may precede the symptomatic form of the disease.

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Development and Validation of a Scoring System to Predict Response to Obeticholic Acid in Primary Biliary Cholangitis.

Clin Gastroenterol Hepatol

October 2024

Division of Gastroenterology, Centre for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, European Reference Network on Hepatological Diseases, San Gerardo Hospital, Monza, Italy. Electronic address:

Article Synopsis
  • The study focused on creating a scoring system called the OCA response score (ORS) to predict how individuals with primary biliary cholangitis (PBC) will respond to the treatment using obeticholic acid (OCA).
  • Data were collected from two large cohorts in Italy to derive and validate the score, which includes various clinical factors both before and after six months of treatment.
  • The scoring system demonstrated good predictive ability for treatment response, which could help healthcare providers customize therapies for patients with PBC more effectively.
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Individuals with Inflammatory Bowel Disease (IBD) are more susceptible to experiencing severe complications of COVID-19 if infected. Nevertheless, sub-optimal immunization rates have been reported among these patients. Our study aims to assess COVID-19 VH among a global population of patients with IBD and to investigate the role of healthcare professionals, particularly gastroenterologists, in promoting immunization.

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Article Synopsis
  • This study compares two surgical methods, Hartmann's procedure (HP) and resection with primary anastomosis (RPA), for treating acute left-sided colonic emergencies among 1215 patients from 204 centers globally.
  • Results showed that while HP was the more common treatment (57.3%), RPA was favored for younger patients with fewer health issues and those needing surgery sooner.
  • The study concluded that although HP is still widely used, RPA might be the better option, emphasizing the importance of patient characteristics and surgeon experience in determining treatment choice.
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Background: In the randomized phase II REGOMA trial, regorafenib showed promising activity in patients with recurrent glioblastoma. We conducted a large, multicenter, prospective, observational study to confirm the REGOMA data in a real-world setting.

Patients And Methods: The major inclusion criteria were histologically confirmed diagnosis of glioblastoma according to the World Health Organization (WHO) 2016 classification and relapse after radiotherapy with concurrent/adjuvant temozolomide treatment, good performance status [Eastern Cooperative Oncology Group performance status (ECOG PS 0-1)] and good liver function.

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Metabolic dysfunction-associated steatotic liver disease (MASLD) is closely related to some metabolic disorders, such as central obesity and type 2 diabetes (T2D). Glucagon-like peptide 1 receptor agonists (GLP-1RAs), such as semaglutide, may have therapeutic roles in MASLD associated with T2D. This study aims to investigate the molecular mechanisms underlying the effectiveness of semaglutide on MASLD in terms of progression from liver steatosis to fibrosis.

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Background And Aim: Alpha-fetoprotein (AFP), an oncofetal protein and biomarker in hepatocellular carcinoma (HCC), has unclear roles and actions.To evaluate the relationships between AFP, liver function tests, and HCC aggressiveness.

Materials And Methods: A retrospective analysis of an HCC patient database was conducted to examine the relationships between baseline serum AFP values, liver function tests, and tumor characteristics.

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A healthy intestinal permeability facilitates the selective transport of nutrients, metabolites, water, and bacterial products, involving cellular, neural, hormonal, and immune factors. An altered intestinal permeability indicates pathologic phenotypes and is associated with the exacerbation of obesity and related comorbidities. To investigate the impact of altered permeability in obese patients undergoing a calorie-restrictive dietary regimen (VLCKD), we collected urinary and fecal samples from obese patients with both normal and altered permeability (determined based on the lactulose/mannitol ratio) before and after treatment.

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Introduction: Inverted Internal Limiting Membrane (ILM)-flap technique demonstrated its effectiveness, in terms of anatomical closure rate and visual acuity recovery for high myopic macular holes. We evaluated macular function after a successful inverted ILM-flap for macular holes in high myopic eyes (hMMH) using microperimetry to predict visual prognosis.

Methods: A retrospective study on 23 eyes of 23 patients after surgical closure of hMMH, was performed.

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