期刊
EXPERIMENTAL LUNG RESEARCH
卷 27, 期 3, 页码 231-243出版社
HEMISPHERE PUBL CORP
DOI: 10.1080/019021401300053984
关键词
alveolar cells; apoptosis; cell cycle; connexin; gap junctions
资金
- NCI NIH HHS [CA33497, CA57612] Funding Source: Medline
Gap junctions provide direct pathways for the exchange of molecules and ions between neighboring cells, a process Known as gap junctional intercellular communication (GJIC). This GJIC is important for homeostasis and regulation of mitosis, differentiation, and apoptosis. Gal, junctions are present in lung airway and alveolar epithelial cells and, in addition to the above roles, might coordinate ciliary beating and surfactant secretion. GJIC is decreased in human and mouse lung carcinoma cells because of reduced expression of the gap junction protein, connexin43 (Cx43), and defects in signal transduction pathways that mediate Cx43 function. This reduced GJIC is important in the behavior of lung carcinoma cells because forced expression of Cx43 in lung carcinoma cells inhibits their growth and tumorigenicity. In this report, we summarize our studies on the role of GJIC in lung neoplasia.
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