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Generation and Expansion of Primary, Malignant Pleural Mesothelioma Tumor Lines
Published on: April 21, 2022
p53 Expression in a Malignant Mesothelioma Patient during Seven-Year Follow-up
So-My Koo1, Soo-Taek Uh1, Dong Won Kim2
1Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Hospital, Soonchunhyang University College of Medicine, Seoul, Korea.
Abstract:
Malignant mesothelioma (MM) is the aggressive tumor of serosal surfaces. There are crude pathogenetic results regarding the biology of MM. Coordinated upregulations of p53 gene expression are shown in malignancies. We believed that there are changes in the p53 expression with transformation from reactive hyperplasia to MM. A 65-year-old male was admitted the hospital because of left pleuritic chest pains in 2004. Chest computed tomography (CT) results showed left pleural effusions with loculation and pleural thickening. Pathologic findings revealed reactive mesothelial hyperplasia. In 2008, the patient again felt left pleuritic chest pains. Chest CT showed progressive thickening of the left pleura. Pathologic diagnosis was atypical mesothelial hyperplasia. In 2011, chest CT showed progressive thickening of his left pleura. He was diagnosed with well-differentiated papillary mesothelioma. Serial change was analyzed by immunohistochemical staining for p53 of pleural tissues. There were no remarkable changes in p53 expressions during the transformation to MM.
Insights
This study investigated p53 gene expression changes during the progression of pleural disease to malignant mesothelioma. Results showed no significant alterations in p53 expression, suggesting it may not be a key factor in this transformation.
Area of Science:
- Oncology
- Pathology
Background:
- Malignant mesothelioma (MM) is an aggressive tumor arising from serosal surfaces.
- Aberrant p53 gene expression is observed in many malignancies.
- The role of p53 in the transformation from reactive hyperplasia to MM is not well understood.
Purpose of the Study:
- To investigate serial changes in p53 gene expression during the progression of pleural disease to malignant mesothelioma.
- To determine if p53 upregulation accompanies the transformation from reactive mesothelial hyperplasia to MM.
Main Methods:
- Immunohistochemical staining for p53 was performed on serial pleural tissue samples.
- Tissue samples were obtained from a patient with a history of pleural effusions, progressing from reactive mesothelial hyperplasia to atypical mesothelial hyperplasia, and finally to well-differentiated papillary mesothelioma.
- Clinical and radiological data from computed tomography (CT) scans were correlated with pathological findings.
Main Results:
- Serial analysis of pleural tissues revealed no remarkable changes in p53 expression throughout the progression from reactive hyperplasia to atypical hyperplasia and ultimately to malignant mesothelioma.
- Computed tomography scans documented progressive thickening of the pleura over a seven-year period.
- The patient's diagnosis evolved over time, culminating in malignant mesothelioma.
Conclusions:
- p53 gene expression does not appear to be significantly altered during the transformation from reactive mesothelial hyperplasia to malignant mesothelioma in this case.
- Further research is needed to elucidate the specific pathogenetic mechanisms involved in malignant mesothelioma development.
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