Related Experiment Video
Updated: Feb 5, 2026
05:20
Zebrafish Model of Neuroblastoma Metastasis
Published on: March 14, 2021
3.2K
DUSP5 expression associates with poor prognosis in human neuroblastoma
Olaia Aurtenetxe1, Laura Zaldumbide2, Asier Erramuzpe3
1Biomarkers in Cancer Unit, Biocruces-Bizkaia Health Research Institute, 48903 Barakaldo, Bizkaia, Spain.
Experimental and Molecular Pathology
|September 2, 2018
Summary
MAP kinase phosphatases (MKPs) regulate neuroblastoma (NB) cell growth. DUSP5, an MKP, is linked to poor NB prognosis and may limit ERK1/2-mediated proliferation, offering therapeutic insights.
Area of Science:
- Oncology
- Cell Biology
- Molecular Biology
Background:
- Neuroblastoma (NB) maintenance therapies target cell growth and differentiation.
- MAP kinase phosphatases (MKPs) are implicated in neuronal regulation, but their role in NB is unclear.
Purpose of the Study:
- To investigate MKP expression patterns in neuroblastoma.
- To identify MKPs that regulate NB cell differentiation and growth.
- To explore the prognostic significance of MKPs in NB.
Main Methods:
- Expression analysis of MKP family in human NB tumors and cell lines (SH-SY5Y, SMS-KCNR, IMR-32).
- Induction of differentiation using retinoic acid (RA).
- Stimulation of MAPK ERK1/2 pathway activation.
- siRNA-mediated knockdown of DUSP5.
Main Results:
- Identified candidate MKPs modulating NB cell differentiation and growth.
- High pERK1/2 expression correlated with DUSP5 expression and poor NB prognosis.
- ERK1/2 activation in SH-SY5Y cells increased proliferation and correlated with DUSP5 levels.
- DUSP5 knockdown augmented SH-SY5Y cell proliferation.
Conclusions:
- Disclosed dynamic MKP expression in NB cells.
- Identified DUSP5 as a potential marker for NB poor prognosis.
- Suggested a role for DUSP5 in limiting ERK1/2-mediated NB proliferation.
Related Concept Videos
01:21Association Areas of the Cortex
9.4K
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
9.4K
01:27Associative Learning
1.3K
Associative learning is a fundamental concept in behavioral psychology, wherein a connection is established between two stimuli or events, leading to a learned response. This process is critical in understanding how behaviors are acquired and modified. Conditioning, the mechanism through which associations are formed, can be divided into two main types: classical conditioning and operant conditioning, each elucidating different aspects of associative learning.
Classical conditioning, also known...
Classical conditioning, also known...
1.3K
01:11Genome-wide Association Studies-GWAS
15.7K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
15.7K
01:23Somatosensory, Motor, and Association Cortex
2.8K
The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
2.8K
02:24Regulation of Expression Occurs at Multiple Steps
26.5K
Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence.
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
26.5K
01:42What is Gene Expression?
196.9K
Overview
Gene expression is the process in which DNA directs the synthesis of functional products, that is, proteins. Cells can regulate gene expression at various stages. It allows organisms to generate different cell types and enables cells to adapt to internal and external factors.
Genetic Information Flows from DNA to RNA to Protein
A gene is a stretch of DNA that serves as the blueprint for functional RNAs and proteins. Since DNA is made up of nucleotides and proteins consist of amino...
Gene expression is the process in which DNA directs the synthesis of functional products, that is, proteins. Cells can regulate gene expression at various stages. It allows organisms to generate different cell types and enables cells to adapt to internal and external factors.
Genetic Information Flows from DNA to RNA to Protein
A gene is a stretch of DNA that serves as the blueprint for functional RNAs and proteins. Since DNA is made up of nucleotides and proteins consist of amino...
196.9K