Amyotrophic Lateral Sclerosis (ALS) which is a progressive neurodegenerative disease that affects motor neurons causing muscle weakness, loss of mobility, and at late stages impairment of basic functions like breathing and swallowing. Also this disease presents a great challenge to patients and caregivers in terms of its progression which is slow and in which treatment choices are few. Current medical treatments are for the most part directed at slowing disease progression and ameliorating symptoms which they do not reverse. In that regard we see in Thailand an increased interest in stem cell therapy for ALS which is in the regenerative medicine space that puts forward supports for neural function at a cellular level. These present studies are of which we are looking at as adjuvants to standard care we have which focus on inflammatory response, cell signaling, and neuroprotection.
Pathophysiology of ALS
ALS is a disease that features the death of upper and lower motor neurons which in turn leads to a progressive muscle atrophy and weakness.
Multiple biological processes which are thought to play a role in disease progression:.
- Motor neuron degeneration which results in loss of voluntary muscle control.
- Neuroinflammation that leads to neuronal damage.
- Oxidative stress which results in cell damage.
- Glutamate induced neurotoxicity which in turn causes excessive neuron stimulation and death.
- Mitochondrial failure in cellular energy production.
These processes play out in a complex way which in turn causes progressive neuronal loss which is seen in the clinical course of ALS.
Illustration of ALS pathophysiology, including motor neuron degeneration, neuroinflammation, oxidative stress, and excitotoxicity contributing to progressive muscle weakness.
Limitations of Conventional Treatment
At present there are few treatments for ALS which also mainly aim at slowing disease progress and improving quality of life.
Here are some of the methods that are used:.
- Drugs which modify disease (e.g. riluzole, edaravone).
- Support in the form of physical therapy and respiratory care which includes.
- Nutrition support and assistive devices.
While these treatments do see success at times they have issues:.
- Prevent neuronal damage.
- Limited to short term disease progress.
- Over time care needs to increase.
- Significant health and emotional impact on patients and their families.
These issues bring to light the need for also to look at other strategies which may support neuronal function.
Role of Stem Cell Therapy and Regenerative Medicine
Regenerative medicine puts forth that which which is to support the neural environment instead of to replace lost neurons. Mesenchymal stem cells (MSCs) which also include umbilical cord derived MSCs (UC-MSCs) are a focus in regards to their role in ALS.
These cells are thought to mainly perform paracrine signaling which is the release of bioactive molecules into the surrounding tissues.
Proposed mechanisms under investigation include:
- Immunomodulation which also includes regulation of neuroinflammation.
- Neuropreservative effects which support survival of the affected neurons.
- Decrease in oxidative stress, reduction of cellular damage.
- Support for neural signaling networks which improve communication.
- Secretion of growth factors that in turn support the microenvironment.
Rather instead of direct neuron replacement which is what some may think we are doing we put effort into creating environments that may help in slowing down functional decline.
Conceptual illustration of stem cell–mediated mechanisms in ALS, including neuroprotection, inflammation modulation, and support of neural microenvironment.
Why Patients Consider Thailand
Thailand is a place that has seen an increase in patient tourism for issues related to regenerative medicine which includes ALS.
Main elements include:.
- Expanded clinical and laboratory infrastructure.
- Presence of regenerative medicine programs.
- Integration of holistic and interdisciplinary care.
- Experience in working with international patients.
- Cost efficient options which in many cases do not compare in price to those of the West.
These therapies are instead used in addition to conventional medical care.
Conclusion
ALS is a very complex and progressive neurodegenerative disease which has few treatment options. Conventional therapies report to be very important in the management of symptoms and in the area of support but do not reverse neuronal loss. Stem cell treatments for ALS in Thailand are a growing field in regenerative medicine which focus on the neural environment via means of inflammation control, neuroprotection, and cellular signaling.
While still in the trial stages and results may vary, we see a trend towards bio based approaches in neuro care. For many patients the goal is to improve function, support quality of life, and to look at other options in addition to standard treatment.