Journal
INTERNATIONAL JOURNAL OF ONCOLOGY
Volume 48, Issue 3, Pages 861-868Publisher
SPANDIDOS PUBL LTD
DOI: 10.3892/ijo.2016.3346
Keywords
human gonadotropin-releasing hormone receptor; pharmacoperone; cancer; protein rescue; proliferation
Categories
Funding
- [FIS/IMSS/PROT/559]
- [FIS/IMSS/PROT/G11/936]
- [FIS/IMSS/PROT/G12/1147]
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Recently, an increasing amount of evidence indicates that human gonadotropin-releasing hormone (hGnRH) and its receptor (hGnRHR) are important regulatory components not only to the reproduction process but also in the regulation of some cancer cell functions such as cell proliferation, in both hormone-dependent and -independent types of tumors. The hGnRHR is a naturally misfolded protein that is retained mostly in the endoplasmic reticulum; however, this mechanism can be overcome by treatment with several pharmacoperones, therefore, increasing the amount of receptors in the cell membrane. In addition, several reports indicate that the expression level of hGnRHR in tumor cells is even lower than in pituitary or gonadotrope cells. The signal transduction pathways activated by hGnRH in both gonadotrope and different cancer cell types are described in the present review. We also discuss how the rescue of misfolded receptors in tumor cells could be a promising strategy for cancer therapy.
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