AI Article Synopsis
Article Abstract
The aim of the study was to verify the presence of mutated tumor suppresser gene p53 in intestinal mucosa with histologically confirmed premalignant lesions and gastric carcinoma, and assess its prognostic value. The paper presents prospective study that included 50 patients with gastric adeno-carcinoma of intestinal type that were treated at Gastroenterohepatology Clinic, and 50 patients with histologically confirmed chronic atrophic H. pylori positive gastritis. In the mucosa biopsy samples, we analyzed presence, frequency and severity of inflammatory-regenerative, metaplastic and dysplastic changes. We typed intestinal metaplasia immunohistochemically and confirmed the presence of p53 onco-protein in antigen positive gastric carcinoma cells, and evaluated its prognostic value. Our results suggest that H. pylori acts as an initiator of inflammatory processes in gastric mucosa, which are followed by emergence of precancerous lesions. p53 is expressed late in carcinogenesis (14%) and as such, may be considered as an indicator of transformation of premalignant into malignant lesion.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5802291 | PMC |
| http://dx.doi.org/10.17305/bjbms.2007.3080 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
HER2 Status in Gastric and Gastroesophageal Carcinomas: Evaluation of Histopathological Fingings, Paired ResectionBiopsy Specimens, and the Effect of Neoadjuvant Therapy: A Single Center Study.
Turk J Gastroenterol
January 2025
Department of Medical Pathology, Dokuz Eylül University Faculty of Medicine, İzmir, Türkiye.
Background/aims: Accurately determining the human epidermal growth factor receptor 2 (HER2) status is crucial in identifying suitable candidates for targeted therapy in gastric cancer, considering the cost and potential side effects of anti-HER2 treatments. This study aimed to assess HER2 overexpression/amplification prevalence in gastric and gastroesophageal cancer patients, its correlation with clinicopathological characteristics, and the consistency of HER2 status between biopsy and radical specimens.
Materials And Methods: We analyzed data from 667 specimens of 600 gastric/gastroesophageal cancer patients at Dokuz Eylül University Faculty of Medicine from 2012 to 2021.
Gastric metastasis from PD-L1-positive lung squamous cell carcinoma combined with multiple primary malignant tumors: a case description.
Quant Imaging Med Surg
January 2025
Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical University, Bengbu, China.
A Japanese family of hereditary diffuse gastric cancer with a germline pathogenic variant of CTNN1A detected via comprehensive genome profiling.
Gastric Cancer
January 2025
Division of Pathology, Shizuoka Cancer Center, Shizuoka, Japan.
CTNNA1 codes α-1 catenin, a molecule that functions in intercellular adhesion in combination with E-cadherin (coded by CDH1). A germline pathogenic variant (GPV) of CTNNA1 increases the risk of hereditary diffuse gastric cancer (HDGC); however, this GPV has not been reported in Japan. A 35-year-old Japanese man with an advanced gastric cancer underwent comprehensive genome profiling (CGP), which led to the detection of a CTNNA1 GPV (p.
View Article and Find Full Text PDFMicroangiopathic Hemolytic Anemia as the Initial Presentation of Metastatic Signet-Ring Cell Carcinoma of the Colon: A Case Report.
Cureus
December 2024
Internal Medicine, Hurley Medical Center, Flint, USA.
Microangiopathic hemolytic anemia (MAHA) is a condition characterized by intravascular fragmentation of red blood cells, leading to the characteristic finding of schistocytes on a peripheral blood smear. The differential diagnoses of MAHA include thrombotic thrombocytopenic purpura (TTP), hemolytic-uremic syndrome (HUS), disseminated intravascular coagulation (DIC), idiopathic thrombocytopenic purpura (ITP), infections, malignancies, and solid organ transplantation. The commonly associated malignancies with MAHA are gastric, breast, prostate, lung, and lymphoma.
View Article and Find Full Text PDFMachine learning classification and biochemical characteristics in the real-time diagnosis of gastric adenocarcinoma using Raman spectroscopy.
Sci Rep
January 2025
Department of Internal Medicine and Liver Research Institute, Department of Medical Device Development, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
This study aimed to identify biomolecular differences between benign gastric tissues (gastritis/intestinal metaplasia) and gastric adenocarcinoma and to evaluate the diagnostic power of Raman spectroscopy-based machine learning in gastric adenocarcinoma. Raman spectroscopy-based machine learning was applied in real-time during endoscopy in 19 patients (aged 51-85 years) with high-risk for gastric adenocarcinoma. Raman spectra were captured from suspicious lesions and adjacent normal mucosa, which were biopsied for matched histopathologic diagnosis.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!