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Class III/IV POU transcription factors expressed in small cell lung cancer cells are involved in proneural/neuroendocrine differentiation.
- Source :
-
Pathology international [Pathol Int] 2014 Sep; Vol. 64 (9), pp. 415-22. - Publication Year :
- 2014
-
Abstract
- One-third of lung malignancies demonstrate a proneural/neuroendocrine phenotype or type of differentiation. However, it has not been clearly elucidated how proneural/neuroendocrine differentiation is controlled in lung cancers. We recently demonstrated that the POU3F2 gene plays a significant role in proneural/neuroendocrine differentiation of lung cancers. Because class III POU genes (POU3F1, POU3F2, POU3F3, and POU3F4) and class IV POU genes (POU4F1, POU4F2, and POU4F3) share similar properties in neural development, we analyzed the association between class III/IV POU genes and a proneural/neuroendocrine phenotype in lung cancers using seven small cell lung cancer (SCLC) cell lines and twelve non-SCLC (NSCLC) cell lines. Class III/IV POU gene expression was generally restricted to SCLC cells. However, the forced expression of class III/IV POU genes in the NSCLC cell lines induced the expression of neuroendocrine-specific markers (neural call adhesion molecule 1, synaptophysin, and chromogranin A) and proneural transcription factors (achaete-scute homolog-like 1, NeuroD1, and thyroid transcription factor 1) in various degrees. Furthermore, each class III/IV POU gene induced other class III/IV POU genes, suggesting the mutual induction of class III/IV POU genes. These findings suggest that the expression of class III/IV POU genes is important for the proneural/neuroendocrine differentiation of lung cancer cells.<br /> (© 2014 Japanese Society of Pathology and Wiley Publishing Asia Pty Ltd.)
- Subjects :
- Biomarkers, Tumor genetics
Carcinoma, Neuroendocrine pathology
Cell Differentiation
Cell Line, Tumor
Gene Expression Regulation, Neoplastic
Humans
Lung pathology
Lung Neoplasms pathology
Neuroendocrine Cells pathology
POU Domain Factors genetics
Phenotype
Small Cell Lung Carcinoma pathology
Transgenes
Biomarkers, Tumor metabolism
Carcinoma, Neuroendocrine metabolism
Lung Neoplasms metabolism
POU Domain Factors metabolism
Small Cell Lung Carcinoma metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 1440-1827
- Volume :
- 64
- Issue :
- 9
- Database :
- MEDLINE
- Journal :
- Pathology international
- Publication Type :
- Academic Journal
- Accession number :
- 25243889
- Full Text :
- https://doi.org/10.1111/pin.12198