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Coilin Is Not Expressed by Immunohistochemistry in Hodgkin and Diffuse Large B-cell Lymphomas
Georgia Karpathiou1, Mousa Mobarki2, Shaqraa Musawi3
1Pathology Department, University Hospital of Saint-Etienne, Saint-Etienne, France.
Applied Immunohistochemistry & Molecular Morphology : AIMM
|April 21, 2025
Summary
Coilin protein is absent in classical Hodgkin lymphomas and diffuse large B-cell lymphomas. This study is the first to investigate coilin expression in lymphomas, revealing a significant downregulation.
Area of Science:
- Oncology
- Cell Biology
- Molecular Biology
Background:
- Coilin is the main protein in Cajal bodies (CBs), which are involved in RNA modification.
- Emerging evidence links coilin to the regulation of NF-kB activity.
- NF-kB pathway dysregulation is a key feature of Hodgkin lymphomas.
Purpose of the Study:
- To investigate the immunohistochemical expression of coilin in classical Hodgkin lymphomas.
- To compare coilin expression in Hodgkin lymphomas with diffuse large B-cell lymphomas (DLBCL).
Main Methods:
- Immunohistochemistry was used to examine coilin expression.
- Full tissue sections from 58 classical Hodgkin lymphoma cases were analyzed.
- Coilin expression was also assessed in DLBCL samples.
Main Results:
- Coilin expression was found to be negative in all examined classical Hodgkin lymphoma cases.
- Coilin was also negative in the investigated DLBCL cases.
- This represents the first report on coilin expression in lymphomas.
Conclusions:
- Coilin is downregulated in classical Hodgkin lymphomas and DLBCL.
- Further research is warranted to understand the implications of coilin downregulation in lymphomas.
- The role of coilin in NF-kB regulation within lymphomagenesis requires further investigation.
