Related Experiment Video
Updated: Feb 28, 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
18.8K
LKB1-AMPK Signaling Pathway in Cardiovascular and Other Diseases.
Zhuo Chen1,2,3,4, Qin Yang1,2,3,4, Guo-Wei He1,2,3,4
1Department of Cardiovascular Surgery & the Center for Basic Medical Research TEDA International Cardiovascular Hospital, Tianjin University Tianjin China.
Medcomm
|February 27, 2026
Summary
The LKB1-AMPK pathway regulates cellular energy and stress adaptation. Dysregulation is implicated in cardiovascular, metabolic, and neurodegenerative diseases, offering potential therapeutic targets.
Area of Science:
- Cellular Biology
- Metabolic Signaling
- Disease Pathogenesis
Background:
- The Liver Kinase B1 (LKB1)-AMP-activated protein kinase (AMPK) pathway is crucial for maintaining cellular energy balance and adapting to stress.
- This conserved metabolic sensor integrates signals to regulate glucose, lipid, and protein metabolism, essential for physiological functions.
- While its role in energy homeostasis is well-established, its dysregulation in various diseases and therapeutic potential require further elucidation.
Purpose of the Study:
- To systematically review the molecular basis and regulatory mechanisms of LKB1-AMPK signaling in diverse pathological conditions.
- To explore the pathway's involvement in cardiovascular diseases, metabolic disorders, neurodegenerative diseases, and oncology.
- To assess emerging therapeutic strategies and their challenges for targeting the LKB1-AMPK pathway.
Main Methods:
- Systematic review of existing literature on LKB1-AMPK signaling.
- Integration of findings from cardiovascular, metabolic, neurological, and oncological research.
- Analysis of molecular mechanisms, disease associations, and therapeutic interventions.
Main Results:
- Impaired LKB1-AMPK activity contributes to energy deficits, fibrosis, oxidative stress, and arrhythmias in cardiovascular diseases.
- The pathway is implicated in metabolic disorders (diabetes, diabetic nephropathy) and neurodegenerative diseases (Alzheimer's, Parkinson's).
- LKB1 mutations are linked to tumorigenesis and altered treatment responses in oncology.
Conclusions:
- The LKB1-AMPK pathway is a critical player in numerous complex diseases, highlighting its potential as a biomarker and therapeutic target.
- Emerging strategies like metformin and novel activators show promise but face challenges in specificity and genetic variability.
- Further research integrating insights across disciplines is essential for developing precision medicine approaches targeting this pathway.
More Related Videos
07:15Mechanism of Kemeng Fang's Inhibition of Podocyte Apoptosis in Rats with Membranous Nephropathy through the PI3K/AKT Signaling Pathway
Published on: August 23, 2024
997
08:01Measurement of Insulin- and Contraction-Stimulated Glucose Uptake in Isolated and Incubated Mature Skeletal Muscle from Mice
Published on: May 16, 2021
6.7K
Related Concept Videos
01:19Interactions Between Signaling Pathways
7.4K
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
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...
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...
7.4K
01:25cAMP-dependent Protein Kinase Pathways
8.7K
Cyclic Adenosine Monophosphate (cAMP) is an essential second messenger that activates protein kinase A (PKA) and regulates various biological processes. A single epinephrine molecule binds to GPCR and activates several heterotrimeric G proteins, each stimulating multiple adenylyl cyclase, amplifying the signal, and synthesizing large numbers of cAMP molecules. Small changes in cAMP concentration affect PKA activity. The binding of four cAMP molecules induces a conformational change in PKA,...
8.7K
01:22PI3K/mTOR/AKT Signaling Pathway
5.9K
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a...
5.9K
01:07MAPK Signaling Cascades
8.8K
Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...
8.8K
01:22Amplifying Signals via Enzymatic Cascade
18.7K
When a ligand binds to a cell-surface receptor, the receptor's intracellular domain changes shape, which may either activate its enzyme function or allow its binding to other molecules. The initial signal is amplified by most signal transduction pathways. This means that a single ligand molecule can activate multiple molecules of a downstream target. Proteins that relay a signal are most commonly phosphorylated at one or more sites, activating or inactivating the protein. Kinases catalyze...
18.7K
01:27Transducer Mechanism: Enzyme-Linked Receptors
4.5K
Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:
Major types that are helpful drug targets include:
4.5K