Related Experiment Video
Updated: Jun 12, 2026

An Approach to Study Shape-Dependent Transcriptomics at a Single Cell Level
Published on: November 2, 2020
[Cellular signal transduction pathways in cardiac hypertrophy and heart failure]
Bohdan Lewartowski1, Urszula Mackiewicz
1Zakład Fizjologii Klinicznej, Centrum Medyczne Kształcenia Podyplomowego, Warszawa. blew@cmkp.edu.pl
Insights
This study details molecular pathways in cardiac hypertrophy and heart failure, focusing on how cellular receptors transmit signals to the nucleus, altering gene expression and protein function in heart cells.
Area of Science:
- Cardiology
- Molecular Biology
- Cellular Signaling
Context:
- Cardiac hypertrophy and heart failure involve significant protein expression and functional changes.
- These changes lead to arrhythmias and hemodynamic disturbances.
- Increased cardiac load and receptor activation initiate these cellular alterations.
Purpose:
- To describe the molecular cellular pathways that transmit information from cellular receptors to the nucleus.
- To detail the structure and function of specific pathways involved in cardiac remodeling.
- To present functional relationships between these pathways and their role in heart disease.
Summary:
- The paper elucidates molecular pathways, including Z-discs, integrins, calcineurin/NFAT, MAP kinases, AT1 receptor, protein kinase C, AKT/mTOR, and EGFR/ERK1,2.
- It explains how these pathways are activated by mechanoreceptors and chemoreceptors in response to cardiac load.
- The study details signal transmission from receptors to the nucleus, modifying gene expression and protein function.
Impact:
- Provides a comprehensive overview of signaling pathways implicated in cardiac hypertrophy and heart failure.
- Highlights the role of specific molecular mechanisms in the development of heart disease.
- Offers insights into potential therapeutic targets for treating cardiac conditions.
Abstract:
Cardiac hypertrophy and heart failure are characterized by significant changes of expression and function of many proteins. These changes are responsible for arrhythmias and haemodynamic disturbances. They are initiated by increased cardiac load, detected by cellular mechanoreceptors, and by activation of sarcolemmal chemoreceptors in myocytes and fibroblasts. In the present paper the authors describe the structure and function of molecular cellular pathways for transmission of the information generated by receptors to the nucleus, where it modifies the expression of genes coding for cellular proteins. The authors describe in detail: structure and function of Z-discs and integrins working as mechanoreceptors, calcineurin/NFAT pathways, MAP kinases pathways, pathway activated by AT1 receptors: protein kinase C pathways, AKT/mTHOR kinase pathway and EGRF/ERK1,2 pathway. Functional relationships between pathways mentioned and the results of studies analysing their role in cardiac hypertrophy and heart failure are also presented.
Related Concept Videos
Cellular Adaptation II: Hypertrophy
Pathophysiology of Heart Failure
Heart Failure II: Pathophysiology
Intracellular Signaling Cascades
Intracellular Signaling Cascades
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...

