Chromosome alterations reflect clonal evolution in squamous cell carcinoma of the larynx
Maciej Kujawski, Małgorzata Rydzanicz, Maarit Sarlomo-Rikala, Andrzej Gabriel, Krzysztof SzyfterMed Sci Monit 2002; 8(7): BR279-282 :: ID: 510669
Abstract
Background: The mechanism of multistage carcinogenesis initiated by environmental carcinogens produces clonal evolution of initiated cells to the stage of metastasis. However, the simultaneous co-existence of various cell clones is not excluded. The analysis of chromosome alterations appears to be the best method to assess the clonal composition of a tumor.
Material/Methods: Laryngeal tumor specimens and their corresponding metastases to the adjacent lymph nodes (20 pairs) were analysed by comparative genome hybridization (CGH).
Results: The profile of gains and losses of DNA copy number was found to be fairly similar in the primary tumor location and in its metastasis. In this study the most frequent losses were found on 3p, 5q, 9p, 13p, and 13q, while gains occurred in 1q, 3q, 5p and 11q. The gains and losses were found more frequently in metastasis than in primary tumor, except for the loss of 3p and the gain of 5p. The biological function of the latter chromosome alterations seems to be limited to tumor growth, rather than metastasis formation.
Conclusions: A comparison of the profiles of chromosome alterations in primary tumor locations and metastases indicate that the progression of laryngeal cancer is connected with the clonal evolution of tumor cells.
Keywords: clonal evolution, metastases, molecular cytogenetics, laryngeal cancer
Editorial
01 March 2024 : Editorial
Editorial: First Regulatory Approvals for CRISPR-Cas9 Therapeutic Gene Editing for Sickle Cell Disease and Transfusion-Dependent β-ThalassemiaDOI: 10.12659/MSM.944204
Med Sci Monit 2024; 30:e944204
In Press
21 Feb 2024 : Clinical Research
Potential Value of HSP90α in Prognosis of Triple-Negative Breast CancerMed Sci Monit In Press; DOI: 10.12659/MSM.943049
22 Feb 2024 : Review article
Differentiation of Native Vertebral Osteomyelitis: A Comprehensive Review of Imaging Techniques and Future ...Med Sci Monit In Press; DOI: 10.12659/MSM.943168
23 Feb 2024 : Clinical Research
A Study of 60 Patients with Low Back Pain to Compare Outcomes Following Magnetotherapy, Ultrasound, Laser, ...Med Sci Monit In Press; DOI: 10.12659/MSM.943732
26 Feb 2024 : Clinical Research
Predictive Value of Combined HbA1c and Neutrophil-to-Lymphocyte Ratio for Diabetic Peripheral Neuropathy in...Med Sci Monit In Press; DOI: 10.12659/MSM.942509
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
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
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
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