Objective: To determine the predictive value of p53 nuclear overexpression in comparison with established prognostic pathological features in colorectal adenocarcinoma.
Patients And Methods: 61 patients operated on for cure between January 1989 an December 1991 were included. Expression of p53 protein was examined by immunohistochemistry in paraffin-embedded sections. Tumor localization, depth of bowel wall involvement, lymph nodes metastasis, vascular invasion and PCNA Labelling index were studied in all patients.
Results: Nuclear staining was detected in 27 (44.2%) cases. Positivity was more frequent in tumors with venous invasion and in rectal cancer. p53-positive tumours exhibited a higher likelihood of relapse and lower survival. After adjustment for the other covariates, p53 overexpression was the only factor showing independent prognostic significance on the risk of recurrence. None of the factors analysed evinced independent significant relationship with the risk of death.
Conclusion: Nuclear p53 protein overexpression is closely related to the development of postoperative recurrences and has higher predictive value than standard pathological variables.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
CD155 promotes the advancement of hepatocellular carcinoma by suppressing the p53-mediated ferroptosis via interacting with CD96.
J Mol Med (Berl)
January 2025
Hospital Sensory Department, Shenzhen Qianhai Shekou Free Trade Zone Hospital, 36 Gongye Qi Road, Nanshan District, Shenzhen, 518067, China.
This work researched the influence and mechanism of CD155 on hepatocellular carcinoma advancement. CD155 expression and its effect on survival of hepatocellular carcinoma patients were analyzed based on the GEPIA2 database. String software predicted the interacting between CD155 and CD96, which was further verified by co-immunoprecipitation experiment.
View Article and Find Full Text PDFPerformance of molecular classification in predicting oncologic outcomes of fertility-sparing treatment for atypical endometrial hyperplasia and endometrial cancer.
Int J Gynecol Cancer
January 2025
Nazionale dei Tumori di Milano, Fondazione IRCCS Istituto Gynecological Oncology Unit, Milan, Italy.
Objective: Endometrial cancers can be classified into 4 molecular sub-groups: (1) POLE mutated (POLEmut), (2) mismatch repair deficiency/microsatellite-instable (MMRd/MSI-H), (3) TP53-mutant or p53 abnormal (p53abn), and (4) no specific mutational profile (NSMP). Although molecular classification is increasingly applied in oncology, its role in guiding fertility-sparing treatments for endometrial cancer remains unclear. This study examines the prognostic role of molecular classification in fertility-sparing treatment and its potential to guide treatment decisions.
View Article and Find Full Text PDFLiquid biopsy for diagnosing epithelial ovarian cancer: quantification of cell-free DNA and p53 mutational analysis.
Int J Gynecol Cancer
January 2025
All India Institute of Medical Sciences, Department of Obstetrics and Gynecology (Gynecologic Oncology), Rishikesh, Uttarakhand, India. Electronic address:
Objective: To isolate and quantify cell-free DNA, analysis for p53 mutations, and correlation with tumor burden in women with epithelial ovarian cancer compared with benign and borderline epithelial ovarian tumors.
Methods: In this case-control study, plasma samples of eligible women collected 1 hour before surgery and based on final histopathology, women with epithelial ovarian cancer recruited as cases and borderline, and benign ovarian tumors as controls. Cell-free DNA extracted from plasma serum and quantified using Nanodrop Spectrophotometer.
Position in proton Bragg curve influences DNA damage complexity and survival in head and neck cancer cells.
Clin Transl Radiat Oncol
March 2025
Department of Molecular Genetics, Oncode Institute, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, the Netherlands.
Background And Purpose: Understanding the cellular and molecular effect of proton radiation, particularly the increased DNA damage complexity at the distal end of the Bragg curve, is current topic of investigation. This work aims to study clonogenic survival and DNA damage foci kinetics of a head and neck squamous cell carcinoma cell line at various positions along a double passively scattered Bragg curve. Complementary studies are conducted to gain insights into the link between cell survival variations, experimentally yielded foci and the number and complexity of double strand breaks (DSBs).
View Article and Find Full Text PDFStimuli-responsive benzothiazole-phenothiazine derivatives: mechanochromism, AIE, acid sensing, and anticancer efficacy in benzo[]pyrene-induced cancer models.
J Mater Chem B
January 2025
Department of Chemistry, Indian Institute of Technology Indore, Indore 453552, India.
Mechanofluorochromic (MFC) materials are emerging as a versatile candidate for optoelectronic and biomedical applications. In the present work, we designed and synthesized four MFC materials, namely BT-PTZ-1, BT-PTZ-2, BT-PTZO-1, and BT-PTZO-2, using Suzuki cross-coupling reaction. These materials possess benzothiazole (BT) as an acceptor moiety and different donors, including phenothiazine (PTZ) and triphenylamine (TPA), with variations in their spacer units.
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!