Gap Junctions and Connexins in Cancer Formation, Progression, and Therapy
A special issue of Cancers (ISSN 2072-6694).
Deadline for manuscript submissions: closed (31 December 2018) | Viewed by 88630
Special Issue Editor
Special Issue Information
Dear Colleagues,
Gap junctions are clusters of aqueous channels approximately 1.5 nm in diameter that directly connect the interiors of two apposed cells. The channels enable cell-to-cell diffusion of small molecules and ions (e.g., water, amino acids, simple sugars, second messengers, and microRNAs), but not larger, more complex molecules. The channels are comprised of connexins, of which twenty human forms are known.
Cancer cells typically have defects in gap junctions for many reasons that include deficient expression of connexins, defective connexin trafficking, and poor cell–cell adhesion. The restoration of gap junctions in many types of neoplastic cells normalizes their phenotype (decreased proliferation and tumorigenicity and increased sensitivity to therapy). Connexins also have functions independent of channel formation and can play roles in signal transduction and gene transcription. Some connexins may also enhance invasion and metastasis. Newer studies also suggest connexins impact cancer stem cell number and function and cancer cell dormancy. This Special Issue will highlight recent findings on the many roles of gap junctions and connexins in cancer development, progression, and therapeutic response.
Dr. Randall J. Ruch
Guest Editor
Manuscript Submission Information
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Keywords
- gap junctions
- connexins
- intercellular communication
- tumor microenvironment
- cancer dormancy
- cancer stem cells
- tumor promotion