Related Experiment Video
Updated: Jul 15, 2026
06:51
Utilizing 18F-FDG PET/CT Imaging and Quantitative Histology to Measure Dynamic Changes in the Glucose Metabolism in Mouse Models of Lung Cancer
Published on: July 21, 2018
p27kip1: a target for tumor therapies?
Irina Nickeleit1, Steffen Zender, Uta Kossatz
1Institute for Molecular Biology, Hannover Medical School, Hannover, Germany. Nickeleit.Irina@MH-Hannover.de
Cell Division
|May 10, 2007
Summary
The tumor suppressor protein p27kip1 is crucial for cancer prognosis and treatment outcomes. Inhibiting its degradation can restore p27 levels in cancer cells, offering a novel therapeutic strategy without gene therapy.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- The cyclin-dependent kinase inhibitor p27kip1 functions as a potent tumor suppressor in various human cancers.
- p27kip1 expression levels are closely linked to patient prognosis and predict treatment response.
- Unlike other tumor suppressors, p27kip1 levels in cancer cells are often regulated by ubiquitin-dependent proteolysis.
Purpose of the Study:
- To review experimental findings on targeting p27kip1 for cancer therapy.
- To explore strategies for re-expressing p27kip1 in cancer cells by modulating protein turnover.
Main Methods:
- Review of experimental results.
- Analysis of ubiquitin-dependent proteolysis pathways regulating p27kip1.
- Investigation of therapeutic interventions targeting protein turnover machinery.
Main Results:
- p27kip1 expression is a significant prognostic marker in cancer.
- Ubiquitin-dependent proteolysis is a key regulatory mechanism for p27kip1 stability.
- Interfering with protein turnover can re-establish functional p27kip1 levels.
Conclusions:
- p27kip1 is a promising therapeutic target in oncology.
- Modulating protein degradation pathways offers a viable alternative to gene therapy for restoring p27kip1 function.
- Targeting the protein turnover machinery represents a novel approach for cancer treatment.
Related Concept Videos
02:57Targeted Cancer Therapies
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
There are several types of targeted therapies against specific...
02:57Targeted Cancer Therapies
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
There are several types of targeted therapies against specific...
02:23Abnormal Proliferation
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...
02:34Inhibition of Cdk Activity
The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...
01:05Cancer-Critical Genes II: Tumor Suppressor Genes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
01:05Cancer-Critical Genes II: Tumor Suppressor Genes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...