The histology and immunohistochemistry of pleomorphic and conventional epithelioid mesotheliomas were examined. The former was detected in two young calves aged 2 and 4 months and was characterized by pleomorphic and atypical cells with decreased expression of cytokeratin 7 (CK7). In contrast, the latter was found in a 31-month-old heifer, consisting of tumor cells uniform in size and shape with CK7 expression in nearly all cells. Production of collagen by tumor cells was demonstrated in both histological types, and was considered to be characteristic of bovine epithelioid mesothelioma. Pleomorphic mesothelioma is far more pleomorphic and mitotically active than conventional mesothelioma, and its normal counterpart may be immature mesothelial cells with high proliferation potential, which exist in fetal life and early calfhood.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8267194 | PMC |
| http://dx.doi.org/10.1292/jvms.20-0467 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Recurrence Patterns and Management after Pleurectomy Decortication for Pleural Mesothelioma.
Ann Surg
January 2025
The Thoracic Surgery Oncology laboratory and the International Mesothelioma Program (www.impmeso.org), Division of Thoracic Surgery and the Lung Center, Brigham, and Women's Hospital, and Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA.
Objective: We hypothesize that recurrence following pleurectomy decortication (PD) is primarily local. We explored factors associated with tumor recurrence patterns, disease-free interval (DFI), and post-recurrence survival (PRS).
Summary Background Data: Tumor recurrence is a major barrier for long-term survival after pleural mesothelioma (PM) surgery.
Correlation of Histologic Features with Gene Alterations in Pleural Mesothelioma.
Mod Pathol
January 2025
Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, 10065, USA. Electronic address:
Histologic features, including architectural patterns, cytologic features, and 2021 World Health Organization nuclear grade have been shown to have prognostic significance in epithelioid diffuse pleural mesothelioma (DPM). Biphasic and sarcomatoid DPM, regardless of morphology, have worse outcomes. These prognostic findings are well-established but correlation of architectural patterns, cytologic features, and nuclear grade with genetic alterations has not been well studied.
View Article and Find Full Text PDFIntroduction: In August 2018, the Japanese PMDA approved nivolumab, an immune checkpoint inhibitor (ICI), for previously treated, unresectable, advanced, or recurrent pleural mesothelioma (PM) based on the MERIT trial, a phase II study of 34 cases. However, concerns regarding limited evidence persist.
Methods: We retrospectively analyzed 83 patients with previously treated, unresectable, advanced, or recurrent malignant pleural mesothelioma (MPM) treated with nivolumab from August 2018 to May 2022.
Myeloid Cell Mobilization and Recruitment by Human Mesothelioma in NSG-SGM3 Mice.
Cells
December 2024
Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia.
Malignant pleural mesothelioma is a neoplasm that is often detected late due to nonspecific symptoms. This study utilized NSG-SGM3 mice to examine interactions between a human-derived mesothelioma reporter cell line (MZT-Luc2-mCherry) and the host's myeloid compartment. Tumor growth was assessed using optical tomography, while cytokine/chemokine production was analyzed via multiplex assay.
View Article and Find Full Text PDFThe presence of pleural effusion is an independent prognostic factor in patients with malignant pleural mesothelioma.
Sci Rep
January 2025
Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
Malignant pleural mesothelioma (MPM) is a rare form of thoracic malignancy with a poor prognosis. Pleural effusion (PE) occurs in the majority of patients with MPM; however, its impact on MPM outcomes remains controversial. We searched for eligible patients from the Surveillance, Epidemiology, and End Results (SEER) database, and clinicopathological information and outcomes were collected.
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!