Related Experiment Video
Updated: May 10, 2026

Tracking Hypoxic Signaling within Encapsulated Cell Aggregates
Published on: December 16, 2011
Acid-sensing ion channels under hypoxia
1Department of Basic Medicine; Qilu Hospital; Shandong University; Ji'nan, Shandong Province, PR China.
This study explores how acid-sensing ion channels (ASICs) respond to low oxygen conditions, known as hypoxia. Hypoxia creates acidic environments that may trigger various diseases. ASICs are a type of ion channel activated by low pH levels. The researchers found that these channels may be involved in pain, cancer, and brain injury. The study suggests that ASICs could be important in hypoxia-related diseases. Future work is needed to better understand how ASICs contribute to these conditions. This could lead to new insights into treating diseases affected by hypoxia.
Area of Science:
- Neurophysiology of ion channels
- Hypoxia-induced disease mechanisms
- Acid-sensing ion channel research
Background:
Low oxygen conditions, known as hypoxia, are linked to various diseases through the creation of acidic environments. While many ion channels are known to respond to hypoxia, their specific roles remain unclear. Prior research has shown that hypoxia contributes to disease progression by altering cellular pH. However, the function of acid-sensing ion channels (ASICs) in hypoxia has not been fully explored. These channels are part of a larger family of sodium channels and are activated by low extracellular pH. The connection between ASICs and hypoxia-related diseases is an emerging area of study. This gap motivated researchers to investigate how ASICs might contribute to hypoxia-induced pathologies. No prior work had resolved the full extent of ASIC involvement in hypoxic conditions.
Purpose Of The Study:
The aim of this work is to examine the role of acid-sensing ion channels in hypoxia-induced diseases. Hypoxia creates acidic environments that may alter ion channel activity. This study focuses on how ASICs respond to changes in extracellular pH. The researchers propose that ASICs may be involved in multiple hypoxia-related pathologies. Understanding this relationship could improve disease models for cancer and other conditions. The study seeks to clarify how ASICs contribute to hypoxic effects. This work addresses an unresolved question in ion channel research. The findings may help identify new areas for investigation in hypoxia-related diseases.
Main Methods:
The researchers reviewed existing literature on acid-sensing ion channels and hypoxia. They analyzed how ASICs function under low pH conditions. The study focused on the degenerin/epithelial Na(+) channel family and its response to extracellular pH changes. The team examined how ASIC activity correlates with hypoxia-induced pathologies. They considered evidence from multiple disease models, including cancer and brain injury. The approach involved synthesizing findings from prior studies on ASIC function. The researchers evaluated how altered ASIC activity may influence disease progression. This review approach allowed them to identify key patterns in ASIC behavior under hypoxia.
Main Results:
The strongest finding is that ASICs are activated when extracellular pH decreases. Evidence suggests that ASIC activity is altered in hypoxia-induced pathologies. These channels appear to be involved in pain, apoptosis, and malignancy. The study found that ASICs may contribute to ischemic brain injury and arthritis. Their function under acidic conditions is linked to disease progression. The researchers observed that ASICs are part of a larger channel family. Their activity is closely tied to pH changes in the extracellular environment. The findings suggest that ASICs may be important in hypoxia-related diseases.
Conclusions:
The authors suggest that ASICs may play a role in hypoxia-induced pathologies. Their findings indicate that these channels respond to acidic environments. The study proposes that ASIC activity is altered in diseases like cancer and arthritis. The researchers conclude that further work is needed to explore this relationship. They suggest that understanding ASICs could improve models of hypoxic effects. The study highlights the need for deeper investigation into ASIC function. The authors state that future research may provide new insights into hypoxia-related diseases. Their synthesis points to the importance of studying ASICs in acidic conditions.
Frequently Asked Questions
ASICs are activated by low extracellular pH, which occurs in hypoxic environments. This may explain their role in hypoxia-related pathologies.
ASICs specifically respond to pH changes, while other channels may react to oxygen levels directly. This distinction is important in acidic microenvironments.
ASICs are designed to detect pH changes, which are common in hypoxia. Their activation depends on this acidic environment.
Altered ASIC activity may contribute to neuronal damage in ischemic brain injury. This suggests a potential therapeutic target.
Extracellular pH levels are measured to determine ASIC activation in hypoxia-related conditions.
The authors suggest that further studies on ASICs may improve understanding of hypoxia's effects in diseases like cancer and arthritis.
More Related Videos
09:17Co-immunoprecipitation Assay Using Endogenous Nuclear Proteins from Cells Cultured Under Hypoxic Conditions
Published on: August 2, 2018
07:59A Strain Gauge Monitor (SGM) for Continuous Valve Gape Measurements in Bivalve Molluscs in Response to Laboratory Induced Diel-cycling Hypoxia and pH
Published on: August 1, 2018
Related Concept Videos
Hypoxia
Types of Hypoxia
There are four primary types of hypoxia, each resulting from a different cause:
1. Anemic hypoxia: This type occurs due to insufficient oxygen delivery caused by a lack of red blood cells (RBCs) or RBCs with abnormal or...
Mechanically-gated Ion Channels
Mechanically-gated Ion Channels
Chemical Factors Affecting Respiration Centers
CO2 has a potent influence on respiration and is strictly regulated. Under...
Ion Channels
Ion channels are specialized integral membrane proteins on the plasma membrane that allow specific...
Acute Respiratory Failure-II
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include: