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Multinucleation of koilocytes is actually multilobation.
1Department of Pathology, Yonsei University College of Medicine, Seoul, Korea. cho1988@yumc.yonsei.ac.kr
Summary
Human papillomavirus (HPV) infection causes characteristic cell changes. Three-dimensional imaging revealed koilocyte multinucleation is actually multilobation of a single nucleus, not multiple nuclei.
Area of Science:
- Cytopathology
- Virology
- Microscopy
Background:
- Human papillomavirus (HPV) is a common sexually transmitted infection.
- HPV infection is associated with cervical cancer and characteristic cytopathic changes known as koilocytes.
- The precise morphology of koilocytes has been debated, particularly regarding multinucleation.
Purpose of the Study:
- To clarify the complete cytomorphology of HPV-induced cytopathic changes.
- To investigate the nuclear structure of koilocytes using advanced imaging techniques.
Main Methods:
- Confirmation of 22 HPV types using DNA chip technology.
- Three-dimensional (3D) reconstruction from confocal fluorescent images of human uterine cervical swab samples and tumor tissues.
- 3D confocal image restoration to visualize cellular structures.
Main Results:
- The study successfully identified 22 HPV types in the samples.
- 3D reconstruction revealed that the multinucleated appearance of koilocytes is due to the multilobation of a single nucleus.
- This finding contrasts with the traditional understanding of true multinucleation.
Conclusions:
- The characteristic multinucleated feature of koilocytes in HPV infection is a result of nuclear multilobation, not true multinucleation.
- This detailed cytomorphological understanding is crucial for accurate diagnosis and understanding HPV pathogenesis.
- Advanced 3D imaging techniques provide novel insights into cellular structures affected by viral infections.