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Subcellular Fractionation for ERK Activation Upon Mitochondrial-derived Peptide Treatment
Published on: September 25, 2017
Pathological roles of MAPK signaling pathways in human diseases
1School of Life Sciences and Biotechnology, Korea University, Seoul 136-701, South Korea.
Abstract:
The mammalian family of mitogen-activated protein kinases (MAPKs) includes extracellular signal-regulated kinase (ERK), p38, and c-Jun NH(2)-terminal kinase (JNK), with each MAPK signaling pathway consisting of at least three components, a MAPK kinase kinase (MAP3K), a MAPK kinase (MAP2K), and a MAPK. The MAPK pathways are activated by diverse extracellular and intracellular stimuli including peptide growth factors, cytokines, hormones, and various cellular stressors such as oxidative stress and endoplasmic reticulum stress. These signaling pathways regulate a variety of cellular activities including proliferation, differentiation, survival, and death. Deviation from the strict control of MAPK signaling pathways has been implicated in the development of many human diseases including Alzheimer's disease (AD), Parkinson's disease (PD), amyotrophic lateral sclerosis (ALS) and various types of cancers. Persistent activation of the JNK or p38 signaling pathways has been suggested to mediate neuronal apoptosis in AD, PD, and ALS, whereas the ERK signaling pathway plays a key role in several steps of tumorigenesis including cancer cell proliferation, migration, and invasion. In this review, we summarize recent findings on the roles of MAPK signaling pathways in human disorders, focusing on cancer and neurodegenerative diseases including AD, PD, and ALS.
Insights
Mitogen-activated protein kinase (MAPK) pathways regulate cell activities but their dysregulation is linked to diseases. This review covers MAPK roles in cancer and neurodegenerative diseases like Alzheimer's, Parkinson's, and ALS.
Area of Science:
- Cellular Biology
- Molecular Biology
- Neuroscience
Background:
- Mitogen-activated protein kinases (MAPKs) are crucial signaling pathways involving MAP3K, MAP2K, and MAPK components.
- MAPK pathways are activated by various stimuli and regulate essential cellular functions like proliferation, differentiation, survival, and death.
Purpose of the Study:
- To review recent findings on the involvement of MAPK signaling pathways in human diseases.
- To focus on the roles of MAPKs in cancer and neurodegenerative conditions such as Alzheimer's disease (AD), Parkinson's disease (PD), and amyotrophic lateral sclerosis (ALS).
Main Methods:
- Literature review of recent scientific findings.
- Focus on studies investigating MAPK signaling in cancer and neurodegenerative diseases.
Main Results:
- Dysregulation of MAPK pathways is implicated in numerous human diseases.
- Persistent activation of JNK or p38 pathways contributes to neuronal apoptosis in AD, PD, and ALS.
- The ERK pathway is critical for cancer progression, including proliferation, migration, and invasion.
Conclusions:
- MAPK signaling pathways are significantly involved in the pathogenesis of cancer and neurodegenerative diseases.
- Understanding MAPK roles is vital for developing therapeutic strategies for these conditions.
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