01 August 2004
Lack of relationship between metallothionein (MT) expression and proliferation exponents in cells of primary ductal breast cancer of G2 grade of differentiation
Paweł Surowiak, Piotr Paluchowski, Piotr Dzięgiel, Teresa Wysocka, Andrzej Wojnar, Marek Spaczyński, Maciej ZabelMed Sci Monit 2004; 10(8): BR300-305 :: ID: 11720
Abstract
Background:The metallothioneins (MTs) are a group of proteins which, due to their unique structure, fulfil numerous functions in the cell. They participate in growth, differentiation, and reparative processes, protect cells against free radicals, and are responsible for heavy metal homeostasis. Their involvement has been reported in the multidrug resistance to cytostatic drugs. Numerous reports document MT presence in cells of various tumors, including breast cancer. Augmented expression of MTs has been reported in less differentiated tumors. MT expression used to be linked to higher proliferative activity of tumor cells, shorter survival of the patients, and tamoxifen-resistance. The present study aimed at examining the relation between MT expression and the manifestation of proliferation exponents (Ki67, nucleolar organizers – AgNORs) in cells of ductal breast cancer of G2 grade of malignancy.Material/Methods: Reactions were performed to detect MTs (clone E9), Ki67 (clone MIB-1) (immunocytochemistry), and AgNORs (silver impregnation) in paraffin sections of breast cancers in G2 grade originating from 60 females. Results of the reactions were subjected to statistical analysis using Statistica 98 PL software.Results: Statistical analysis (Spearman’s rank correlation) demonstrated no relationships between the studied markers (p>0.05).Conclusions: There is no correlation between metallothionein expression and proliferation and between Ki67 and AgNORs in ductal breast cancers of G2 grade of differentiation.
Keywords: Breast Neoplasms - pathology, Carcinoma, Ductal, Breast - pathology, Cell Division - physiology, Ki-67 Antigen - metabolism, Metallothionein - metabolism, Breast Neoplasms - pathology, Carcinoma, Ductal, Breast - pathology, Cell Division - physiology, Ki-67 Antigen - metabolism, Metallothionein - metabolism
Editorial
01 May 2024 : Editorial
Editorial: First Regulatory Approval for Adoptive Cell Therapy with Autologous Tumor-Infiltrating Lymphocytes (TILs) – Lifileucel (Amtagvi)DOI: 10.12659/MSM.944927
Med Sci Monit 2024; 30:e944927
In Press
12 Mar 2024 : Clinical Research
Tissue Inhibitors of Metalloproteinase 1 (TIMP-1) and 3 (TIMP-3) as New Markers of Acute Kidney Injury Afte...Med Sci Monit In Press; DOI: 10.12659/MSM.943500
12 Mar 2024 : Review article
Optimizing Behçet Uveitis Management: A Review of Personalized Immunosuppressive StrategiesMed Sci Monit In Press; DOI: 10.12659/MSM.943240
12 Mar 2024 : Clinical Research
Metabolomic Alterations in Methotrexate Treatment of Moderate-to-Severe PsoriasisMed Sci Monit In Press; DOI: 10.12659/MSM.943360
14 Mar 2024 : Clinical Research
Renal Dysfunction Increases Risk of Adverse Cardiovascular Events in 5-Year Follow-Up Study of Intermediate...Med Sci Monit In Press; DOI: 10.12659/MSM.943956
Most Viewed Current Articles
17 Jan 2024 : Review article
Vaccination Guidelines for Pregnant Women: Addressing COVID-19 and the Omicron VariantDOI :10.12659/MSM.942799
Med Sci Monit 2024; 30:e942799
14 Dec 2022 : Clinical Research
Prevalence and Variability of Allergen-Specific Immunoglobulin E in Patients with Elevated Tryptase LevelsDOI :10.12659/MSM.937990
Med Sci Monit 2022; 28:e937990
16 May 2023 : Clinical Research
Electrophysiological Testing for an Auditory Processing Disorder and Reading Performance in 54 School Stude...DOI :10.12659/MSM.940387
Med Sci Monit 2023; 29:e940387
01 Jan 2022 : Editorial
Editorial: Current Status of Oral Antiviral Drug Treatments for SARS-CoV-2 Infection in Non-Hospitalized Pa...DOI :10.12659/MSM.935952
Med Sci Monit 2022; 28:e935952