Cell proliferation and chromosomal imbalances, important parameters in relation to tumor progression, were studied in ameloblastoma (n=20), a benign odontogenic tumor of locally recurrent nature. Immunocytochemical staining with MIB-1 antibody and comparative genomic hybridization (CGH) were performed on formalin-fixed paraffin-embedded ameloblastomas. The mean follow-up time was 12.4 years. An MIB-1-index was formed by counting 5000 tumor-cell nuclei in 10-15 randomly chosen high-power fields and calculating percentages of positively stained cells. CGH involved hybridization of FITC-dUTP-labeled tumor DNA with Texas-red-labeled normal DNA. Images were digitally analyzed. The MIB-1-index (range 0-2.51) was low for all tumors. No statistically significant correlation between MIB-1 index and tendency to recurrence was found. Chromosomal aberrations were detected in 2 of 17 cases. The results suggest that formation of an MIB-1 index is not helpful in assessing future clinical behavior of an ameloblastoma and that chromosomal imbalances are uncommon.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/s0165-4608(02)00512-5 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
UBE2J1 is identified as a novel plasma cell-related gene involved in the prognosis of high-grade serous ovarian cancer.
J Transl Med
January 2025
Department of Gynecology, The Fourth Hospital of Hebei Medical University, No.12 Jiankang Road, Shijiazhuang, 050000, Hebei, China.
Background: Immune cells within tumor tissues play important roles in remodeling the tumor microenvironment, thus affecting tumor progression and the therapeutic response. The current study was designed to identify key markers of plasma cells and explore their role in high-grade serous ovarian cancer (HGSOC).
Methods: We utilized single-cell sequencing data from the Gene Expression Omnibus (GEO) database to identify key immune cell types within HGSOC tissues and to extract related markers via the Seurat package.
The role of lipids and lipids lowering drugs in human papillomavirus (HPV) and HPV-associated cancers.
Infect Agent Cancer
January 2025
Shahid Beheshti University of Medical Sciences, Hamadan University of Medical Sciences, Hamadan, Iran.
Both women and men are now confronted with the grave threat of cancers caused by the human papillomavirus (HPV). It is estimated that 80% of women may encounter HPV over their lives. In the preponderance of cases involving anal, head and neck, oral, oropharyngeal, penile, vaginal, vulvar, and cervical malignancies, high-risk HPV (HR-HPV) is the causative agent.
View Article and Find Full Text PDFPredictive role of SLC1A5 in neuroblastoma prognosis and immunotherapy.
BMC Cancer
January 2025
Department of Pediatric Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
Background: Neuroblastoma, a prevalent extracranial solid tumor in pediatric patients, demonstrates significant clinical heterogeneity, ranging from spontaneous regression to aggressive metastatic disease. Despite advances in treatment, high-risk neuroblastoma remains associated with poor survival. SLC1A5, a key glutamine transporter, plays a dual role in promoting tumor growth and immune modulation.
View Article and Find Full Text PDFNIPAL1 as a prognostic biomarker associated with pancreatic adenocarcinoma progression and immune infiltration.
BMC Cancer
January 2025
First Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, China.
Pancreatic adenocarcinoma (PAAD) is a highly malignant tumor in the digestive system, with an increasing incidence and mortality rate globally. Recent genetic studies have revealed that the abnormal expression and functional dysregulation of various genes are involved in the occurrence and progression of pancreatic cancer. NIPA-like proteins (NIPAs) are expressed in a variety of cancer types, yet the role of NIPAL1 in cancer remains unclear.
View Article and Find Full Text PDFThe impact of customized surface topography and porosity created by additive manufacturing technology on gingival fibroblasts.
J Prosthodont
January 2025
Prosthodontist, Implant Dentistry Associates of Arlington, Arlington, Texas, USA.
Purpose: The purpose of this study was to analyze gingival fibroblast proliferation on additively manufactured polymethylmethacrylate (PMMA) groups with different surface characteristics namely no treatment group (NTG) and customized 250 µm diameter porosity (AM-250G) group.
Materials And Methods: 3D-printed NTG was compared for its influence on growth of cells to a additively manufactured surface with porosity (AM-250G). For each group (NTG, AM-250G) 20 samples of material were tested.
Want 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!