Related Experiment Video
Updated: Jan 22, 2026
08:00
The Clinical Application of Tumor Treating Fields Therapy in Glioblastoma
Published on: April 16, 2019
19.2K
Inhibitory glutamatergic feedback for brain tumor therapy
Ray X Lee1,2,3
1Division of Convergence Research, MIT Sigma Xi, Cambridge, MA, USA. raylee@mit.edu.
Medical Oncology (Northwood, London, England)
|January 20, 2026
Summary
Low-frequency brain stimulation may counter glioma growth by activating inhibitory receptors, disrupting tumor-promoting neuron-glioma interactions. This offers a novel therapeutic strategy for brain cancer.
Area of Science:
- Neuroscience
- Oncology
- Neuro-oncology
Background:
- Neuronal excitatory activity, driven by glutamate signaling, fuels glioma progression.
- Effective intrinsic brain mechanisms to counteract this tumor promotion are not well-defined.
- Tumor-promoting neuron-glioma interactions represent a critical area for therapeutic intervention.
Purpose of the Study:
- To propose a hypothesis leveraging intrinsic brain mechanisms to disrupt neuron-glioma interactions.
- To explore the potential of low-frequency neuronal stimulation as a therapeutic strategy.
- To introduce a biologically grounded approach for precision neuro-oncology.
Main Methods:
- Review and synthesis of existing knowledge on neuronal activity, glutamate signaling, and glioma biology.
- Hypothesizing the role of low-frequency stimulation in activating inhibitory pathways.
- Conceptualizing the disruption of tumor-promoting neuron-glioma signaling.
Main Results:
- Repeated low-frequency neuronal stimulation can induce glutamate buildup.
- This buildup can activate inhibitory presynaptic metabotropic glutamate receptors (mGluRs).
- Activation of mGluRs may disrupt tumor-promoting neuron-glioma interactions.
Conclusions:
- Low-frequency neuronal stimulation presents a potential strategy to inhibit glioma progression.
- Targeting inhibitory metabotropic glutamate receptors offers a novel therapeutic avenue.
- This biologically grounded approach could lead to distinctive treatments in precision neuro-oncology.
More Related Videos
10:13A Brain Tumor/Organotypic Slice Co-culture System for Studying Tumor Microenvironment and Targeted Drug Therapies
Published on: November 7, 2015
11.6K
11:09Establishing Intracranial Brain Tumor Xenografts With Subsequent Analysis of Tumor Growth and Response to Therapy using Bioluminescence Imaging
Published on: July 13, 2010
40.4K
Related Concept Videos
00:46Feedback Inhibition
56.9K
Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell!
56.9K
01:01Feedback Loops
64.2K
In most cases, excessive hormone production is prevented by negative feedback—a loop that starts with a stimulus inducing the release of a particular substance, like a hormone, to maintain a certain level before triggering a signal that results in a decrease in further release of the hormone.
64.2K
01:24Effects of feedback
1.0K
Feedback in control systems plays a critical role in shaping various operational parameters, extending beyond simple error reduction to influence stability, bandwidth, gain, impedance, and sensitivity. Understanding these effects requires examining a basic feedback system characterized by defined input, output, error, and feedback signals.
Feedback significantly modifies the gain of a control system. The gain of a system without feedback is altered by a factor of one plus GH, where G represents...
Feedback significantly modifies the gain of a control system. The gain of a system without feedback is altered by a factor of one plus GH, where G represents...
1.0K
01:26Feedback control systems
693
Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
693
01:24Facial Feedback Hypothesis
616
Charles Darwin proposed that facial expressions are an evolutionary adaptation for communication. He argued that these expressions are not influenced by culture but are universal across species. For example, a snarling expression with exposed teeth signals a threat in many animals, including humans. Darwin also suggested that displaying an emotion can intensify the feeling. Smiling, for example, could enhance one's sense of happiness. This idea laid the foundation for understanding the role...
616
01:07Cell Signaling Feedback Loops
7.3K
Positive and negative feedback loops are crucial for regulating biological signaling systems. These feedback loops are processes that connect output signals to their inputs.
Negative feedback loops
Most signaling systems have negative feedback loops that can perform different functions such as output limiter, and adaptation.
Output limiter
Upon receiving an input signal, the cellular response rapidly increases until a threshold is reached. Beyond this threshold, a negative feedback loop...
Negative feedback loops
Most signaling systems have negative feedback loops that can perform different functions such as output limiter, and adaptation.
Output limiter
Upon receiving an input signal, the cellular response rapidly increases until a threshold is reached. Beyond this threshold, a negative feedback loop...
7.3K