Related Experiment Video
Updated: Mar 31, 2026

Intracellular Phosphoflow Cytometry of Acute Myeloid Leukemia Patient-Derived Xenotransplants
Published on: June 6, 2025
Moonlighting proteins in cancer
Kyung-Won Min1, Seong-Ho Lee2, Seung Joon Baek1
1Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA.
Abstract:
Since the 1980s, growing evidence suggested that the cellular localization of proteins determined their activity and biological functions. In a classical view, a protein is characterized by the single cellular compartment where it primarily resides and functions. It is now believed that when proteins appear in different subcellular locations, the cells surpass the expected activity of proteins given the same genomic information to fulfill complex biological behavior. Many proteins are recognized for having the potential to exist in multiple locations in cells. Dysregulation of translocation may cause cancer or contribute to poorer cancer prognosis. Thus, quantitative and comprehensive assessment of dynamic proteins and associated protein movements could be a promising indicator in determining cancer prognosis and efficiency of cancer treatment and therapy. This review will summarize these so-called moonlighting proteins, in terms of a coupled intracellular cancer signaling pathway. Determination of the detailed biological intracellular and extracellular transit and regulatory activity of moonlighting proteins permits a better understanding of cancer and identification of potential means of molecular intervention.
Insights
Moonlighting proteins, which function in multiple cellular locations, offer new insights into cancer. Understanding their dynamic movements and signaling pathways can improve cancer prognosis and treatment strategies.
Area of Science:
- Cell Biology
- Molecular Oncology
- Biochemistry
Background:
- The classical view posits proteins function in a single cellular compartment.
- Emerging evidence shows proteins can reside in multiple subcellular locations, enhancing cellular functions.
- This multi-localization phenomenon, known as protein moonlighting, is crucial for complex biological behaviors.
Purpose of the Study:
- To review moonlighting proteins within the context of intracellular cancer signaling pathways.
- To explore the role of dynamic protein translocation in cancer development and prognosis.
- To highlight the potential of moonlighting proteins as therapeutic targets and biomarkers.
Main Methods:
- Literature review of studies on protein subcellular localization and function.
- Analysis of cancer signaling pathways involving moonlighting proteins.
- Integration of data on protein translocation dynamics and cancer outcomes.
Main Results:
- Moonlighting proteins exhibit diverse functions depending on their cellular location.
- Dysregulation of protein translocation is linked to cancer initiation and progression.
- Quantitative assessment of protein movement offers prognostic value in cancer.
Conclusions:
- Moonlighting proteins play a significant role in coupled intracellular cancer signaling.
- Understanding the transit and regulatory activity of these proteins is key to advancing cancer research.
- Targeting moonlighting protein translocation presents a promising avenue for novel cancer interventions.
More Related Videos
Related Concept Videos
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
mTOR Signaling and Cancer Progression
Adaptive Mechanisms in Cancer Cells
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Adaptive Mechanisms in Cancer Cells
MicroRNAs
MicroRNAs

