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Updated: Aug 18, 2026

Orthotopic Implantation and Peripheral Immune Cell Monitoring in the II-45 Syngeneic Rat Mesothelioma Model
Published on: October 2, 2015
Development of malignant mesothelioma during treatment for prolymphocytic leukemia: is asbestos or simian virus 40 a
Tawee Tanvetyanon1, Amira G Elmishad, Michele Carbone
1Division of Hematology/Oncology, Department of Medicine, Loyola University Chicago Stritch School of Medicine, Maywood, IL 60153, USA. ttanve@lumc.edu
Abstract:
A patient with a history of heavy asbestos exposure presented with B-prolymphocytic leukemia/lymphoma (B-PLL). Soon after, he developed rapidly progressing malignant peritoneal mesothelioma. The concurrent development of both relatively uncommon diseases raised the possibility that a common causative factor might exist. Since asbestos, simian virus 40 (SV40), or both have been associated with lymphoproliferative disease and mesothelioma, we investigated both possible links in our patient. Imaging studies provided evidence for asbestos exposure because bilateral pleural plaques were identified. Tissues from bone marrow (involved with B-PLL) and from a peritoneal nodule (involved with mesothelioma) were examined for SV40 DNA using polymerase chain reaction (PCR): no SV40 DNA was detected. We conclude that asbestos remains the sole possible connection to both malignancies in this patient. It seems possible that fludarabine, an immunosuppressive chemotherapy, accelerated the occurrence and progression of malignant mesothelioma during the therapy for his B-PLL.
Insights
Heavy asbestos exposure may link B-prolymphocytic leukemia/lymphoma (B-PLL) and malignant peritoneal mesothelioma. Simian virus 40 (SV40) was not detected, implicating asbestos as the sole common factor.
Area of Science:
- Oncology
- Environmental Medicine
- Pathology
Background:
- Investigating the etiology of concurrent B-prolymphocytic leukemia/lymphoma (B-PLL) and malignant peritoneal mesothelioma.
- Exploring potential links to asbestos exposure and simian virus 40 (SV40).
Observation:
- A patient with a history of heavy asbestos exposure presented with B-PLL and subsequently developed malignant peritoneal mesothelioma.
- Imaging confirmed asbestos exposure via bilateral pleural plaques.
- SV40 DNA was not detected in bone marrow or peritoneal mesothelioma tissues via PCR.
Findings:
- Asbestos is identified as the sole potential common causative agent for both B-PLL and malignant peritoneal mesothelioma in this patient.
- No evidence of SV40 infection was found.
- Fludarabine, an immunosuppressive chemotherapy, may have accelerated mesothelioma progression.
Implications:
- Highlights the potential long-term oncogenic effects of asbestos exposure.
- Suggests a possible role for immunosuppressive therapy in accelerating unrelated malignancies.
- Underscores the importance of considering occupational and environmental exposures in complex oncological cases.
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