Related Experiment Video
Updated: Oct 13, 2025

Mutagenesis and Analysis of Genetic Mutations in the GC-rich KISS1 Receptor Sequence Identified in Humans with Reproductive Disorders
Published on: September 4, 2011
Functional analysis of the emerging roles for the KISS1/KISS1R signaling pathway in cancer metastasis
Zhenxi Li1, Jing Liu1, Hiroyuki Inuzuka1
1Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA.
Abstract:
Cancer metastasis, a process that primary tumor cells disseminate to secondary organs, is the most lethal and least effectively treated characteristic of human cancers. Kisspeptins are proteins encoded by the KISS1 gene that was originally described as a melanoma metastasis suppressor gene. Then, Kisspeptins were discovered as the natural ligands of the G-protein-coupled receptor 54 (GPR54) that is also called KISS1R. The KISS1/KISS1R signaling is essential to control GnRH secretion during puberty and to establish mammalian reproductive function through the hypothalamic-pituitary-gonadal (HPG) axis. Although KISS1 primarily plays a suppressive role in the metastasis progression in several cancer types, emerging evidence indicates that the physiological effect of KISS1/KISS1R in cancer metastasis is tissue context-dependent and still controversial. Here, we will discuss the epigenetic mechanism involved in the regulation of KISS1 gene expression, the context-dependent role of KISS1/KISS1R, prometastasis/anti-metastasis signaling pathways of KISS1/KISS1R, and the perspective anticancer therapeutics via targeting KISS1/KISS1R.
Insights
Kisspeptins (KISS1) and their receptor (KISS1R) show complex roles in cancer metastasis. Their function is tissue-dependent, offering potential therapeutic targets for cancer treatment.
Area of Science:
- Oncology
- Endocrinology
- Molecular Biology
Background:
- Cancer metastasis is a lethal hallmark of human cancers.
- Kisspeptins, encoded by the KISS1 gene, were initially identified as metastasis suppressors.
- Kisspeptins are ligands for G-protein-coupled receptor 54 (GPR54/KISS1R), crucial for the hypothalamic-pituitary-gonadal axis.
Purpose of the Study:
- To review the epigenetic regulation of KISS1 gene expression.
- To discuss the context-dependent and controversial roles of KISS1/KISS1R in cancer metastasis.
- To explore KISS1/KISS1R signaling pathways and their therapeutic potential.
Main Methods:
- Review of existing literature on KISS1/KISS1R in cancer.
- Analysis of epigenetic mechanisms regulating KISS1 expression.
- Examination of prometastatic and antimetastatic signaling pathways.
Main Results:
- KISS1/KISS1R exhibits context-dependent roles in metastasis, acting as both a suppressor and promoter.
- Epigenetic mechanisms significantly influence KISS1 gene expression.
- The KISS1/KISS1R axis involves complex signaling pathways.
Conclusions:
- The role of KISS1/KISS1R in cancer metastasis is intricate and tissue-specific.
- Targeting the KISS1/KISS1R pathway presents a promising, albeit complex, therapeutic strategy for anticancer treatments.
More Related Videos
10:32Combined Use of Tail Vein Metastasis Assays and Real-Time In Vivo Imaging to Quantify Breast Cancer Metastatic Colonization and Burden in the Lungs
Published on: December 19, 2019
07:38Intracellular Phosphoflow Cytometry of Acute Myeloid Leukemia Patient-Derived Xenotransplants
Published on: June 6, 2025
Related Concept Videos
Interactions Between Signaling Pathways
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
Non-Canonical Wnt Signaling Pathways
Canonical Wnt Signaling Pathway
Cancer Cell Migration through Invadopodia
Metastasis
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...