Related Experiment Video
Updated: Jul 31, 2025

An Integrated Platform for Genome-wide Mapping of Chromatin States Using High-throughput ChIP-sequencing in Tumor Tissues
Published on: April 5, 2018
Oncogenic signaling-mediated regulation of chromatin during tumorigenesis
Jahangir Alam1, Md Nazmul Huda1, Alan J Tackett1,2
1Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
Abstract:
Signaling pathways play critical roles in executing and controlling important biological processes within cells. Cells/organisms trigger appropriate signal transduction pathways in order to turn on or off intracellular gene expression in response to environmental stimuli. An orchestrated regulation of different signaling pathways across different organs and tissues is the basis of many important biological functions. Presumably, any malfunctions or dysregulation of these signaling pathways contribute to the pathogenesis of disease, particularly cancer. In this review, we discuss how the dysregulation of signaling pathways (TGF-β signaling, Hippo signaling, Wnt signaling, Notch signaling, and PI3K-AKT signaling) modulates chromatin modifications to regulate the epigenome, thereby contributing to tumorigenesis and metastasis.
Insights
Dysregulated signaling pathways, including TGF-β, Hippo, Wnt, Notch, and PI3K-AKT, alter chromatin and epigenetics, driving cancer development and spread. Understanding these epigenetic modifications is key to cancer research.
Area of Science:
- Cellular biology
- Molecular biology
- Cancer research
Background:
- Signaling pathways are crucial for cellular functions and gene expression.
- Dysregulation of these pathways is linked to disease, especially cancer.
- Epigenetic modifications play a significant role in cellular processes.
Purpose of the Study:
- To review how specific signaling pathways modulate chromatin modifications.
- To explore the role of epigenome regulation in tumorigenesis and metastasis.
- To highlight the connection between signaling pathway dysregulation and cancer development.
Main Methods:
- Literature review of signaling pathways and epigenetics.
- Analysis of the interplay between signaling pathways and chromatin modifications.
- Discussion of key pathways: TGF-β, Hippo, Wnt, Notch, and PI3K-AKT.
Main Results:
- Signaling pathway dysregulation alters chromatin modifications.
- These epigenetic changes contribute to the regulation of the epigenome.
- The discussed pathways are implicated in promoting tumorigenesis and metastasis.
Conclusions:
- Epigenetic alterations driven by signaling pathway dysregulation are central to cancer.
- Targeting these pathways and their epigenetic effects may offer therapeutic strategies.
- Further research into signaling pathway-epigenome interactions is vital for cancer treatment.
Related Concept Videos
Epigenetic Regulation
X-chromosome...
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
Cancer-Critical Genes I: Proto-oncogenes
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...
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...
Induced Pluripotent Stem Cells
Somatic...
Abnormal Proliferation

