Abstract
Gap junctional intercellular communication is a mechanism for direct cell-to-cell signaling and is mediated by gap junctions, which consist of transmembrane proteins called connexins. Many physiological roles have been proposed for gap junctions such as maintenance of tissue homeostasis, regulation of tissue development, electrical and metabolic coupling as well as regulation of cellular growth, differentiation and apoptosis. Signaling is especially altered via gap junctions in cancer. Furthermore, these membrane channels are believed to be engaged in metastasis. Involvement of aberrant gap junctional intercellular communication in carcinogenesis and tumor suppressing role of connexin genes has been well documented. However, clear explanation is required for the role of connexins that are localized in intracellular compartment of cancerous cells and participate in apoptosis and metastasis as well. The present review is confined to role of connexins in a cell signaling during carcinogenesis, regulation of apoptosis and involvement in metastasis. Potential role of gap junctions and connexins in therapy of cancers was analyzed, too.
Keywords: Connexin, gap junction, carcinogenesis, cancer
Current Signal Transduction Therapy
Title: The Role of Connexins in Carcinogenesis: Review of Current Knowledge
Volume: 2 Issue: 1
Author(s): Kanczuga-koda Luiza, Sulkowski Stanislaw, Koda Mariusz, Wincewicz Andrzej, Rutkowski Tadeusz and Moniuszko Mariola
Affiliation:
Keywords: Connexin, gap junction, carcinogenesis, cancer
Abstract: Gap junctional intercellular communication is a mechanism for direct cell-to-cell signaling and is mediated by gap junctions, which consist of transmembrane proteins called connexins. Many physiological roles have been proposed for gap junctions such as maintenance of tissue homeostasis, regulation of tissue development, electrical and metabolic coupling as well as regulation of cellular growth, differentiation and apoptosis. Signaling is especially altered via gap junctions in cancer. Furthermore, these membrane channels are believed to be engaged in metastasis. Involvement of aberrant gap junctional intercellular communication in carcinogenesis and tumor suppressing role of connexin genes has been well documented. However, clear explanation is required for the role of connexins that are localized in intracellular compartment of cancerous cells and participate in apoptosis and metastasis as well. The present review is confined to role of connexins in a cell signaling during carcinogenesis, regulation of apoptosis and involvement in metastasis. Potential role of gap junctions and connexins in therapy of cancers was analyzed, too.
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Cite this article as:
Luiza Kanczuga-koda, Stanislaw Sulkowski, Mariusz Koda, Andrzej Wincewicz, Tadeusz Rutkowski and Mariola Moniuszko, The Role of Connexins in Carcinogenesis: Review of Current Knowledge, Current Signal Transduction Therapy 2007; 2 (1) . https://dx.doi.org/10.2174/157436207779317074
DOI https://dx.doi.org/10.2174/157436207779317074 |
Print ISSN 1574-3624 |
Publisher Name Bentham Science Publisher |
Online ISSN 2212-389X |
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