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Updated: Jul 19, 2026

Semi-automatic PD-L1 Characterization and Enumeration of Circulating Tumor Cells from Non-small Cell Lung Cancer Patients by Immunofluorescence
Published on: August 14, 2019
[Clinical significance of cyclin Dl expression in non-small cell lung cancer]
1Klinika Chorób Wewnqtrznych, Endokrynologii i Zaburzeń Hemostazy, AM w Gdańsku. ddw@amg.gda.pl
Abstract:
Lung cancer remains interdisciplinary problem. The genetic alterations in non-small cell lung cancer (NSCLC) are related to tumor suppressor genes and proto-oncogenes. CCND1 gene, coding cyclin DI, in correlation with pRb is involved in regulation of cell cycle arrest in G1 phase. Amplification of CCND1 gene and cyclin D1 over-expression was found in several cancers including head and neck cancers or colorectal cancer, where these alterations were correlated with worse prognosis. The literature addressing the clinical significance of CCND1 gene amplification/expression in NSCLC remains poor and prognostic value of these alterations in that cancer is still controversial.
Insights
Genetic alterations in non-small cell lung cancer (NSCLC) are crucial. The CCND1 gene
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Context:
- Non-small cell lung cancer (NSCLC) presents complex genetic alterations.
- The CCND1 gene, encoding cyclin D1, plays a role in cell cycle regulation.
- CCND1 amplification and cyclin D1 overexpression are observed in various cancers, often linked to poor prognosis.
Purpose:
- To investigate the clinical significance of CCND1 gene amplification and expression in NSCLC.
- To clarify the controversial prognostic value of CCND1 alterations in NSCLC.
Summary:
- CCND1 gene amplification and cyclin D1 overexpression are implicated in NSCLC.
- The prognostic value of these CCND1 alterations in NSCLC is currently debated.
- Further research is needed to establish the clinical significance of CCND1 in NSCLC.
Impact:
- Potential to identify novel biomarkers for NSCLC prognosis.
- May contribute to a better understanding of NSCLC pathogenesis.
- Could inform future therapeutic strategies targeting CCND1 in NSCLC.
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