1. The Concerning Need for New ALS Treatments
Receiving a diagnosis of amyotrophic lateral sclerosis is devastating for patients and family members alike. Competing with a diagnosis of multiple sclerosis, amyotrophic lateral sclerosis is a progressive and fatal neurodegenerative disease. Cognitive faculties are largely preserved, but amyotrophic lateral sclerosis will eventually leave patients with severe respiratory failure and progressive muscular atrophy. The atrophy and paralysis of the bulbar muscles renders patients unable to communicate or even to breathe without extreme effort, and is a constant and painful reminder of the loss of their motor control.
Where amyotrophic lateral sclerosis is recognized to be progressive and neurodegenerative, the current treatment options are known to be severely ineffective. Aside from the treatment of spasticity, the standard treatment for amyotrophic lateral sclerosis prolongs the lifespan of patients by a few months. This stagnation of treatment demonstrates an absolute need to be fully addressed within the realm of regenerative medicine. With Stem Cell technologies, medicine will be able to progress from slowing the progression of the disease to actually repairing the neural tissues. By utilizing advanced biologics, the focus of amyotrophic lateral sclerosis therapies will shift toward more therapeutic options to keep the disease from progressing and provide patients with a fighting chance against the current formidable loss of therapeutic options.
2. Complex Biological Processes of Cellular Restoration
Attempting to understand the mechanisms at play when a Stem Cell interacts with a degenerating nervous system involves understanding the microenvironment at the molecular level. The available therapeutic pathways are excellent and quite extensive. The very first of which is what is known as neuroprotection as a result of the secretion of neurotrophic factors. These cells are biological factories that synthesize and release Brain-Derived Neurotrophic Factor and Glial Cell Line-Derived Neurotrophic Factor. These proteins are necessary for the support of damaged motor neurons, as they may stabilize the function of the neurons and help mitigate additional cell death through programmed cell death (apoptosis). The modulation of neuroinflammation is also an important mechanism. In a person suffering from amyotrophic lateral sclerosis hyperactivation of the microglia and astrocytes occurs, which results in the release of inflammatory cytokines that mediate the death of neurons. In this case, transplanted cells may change the microenvironment to a less inflammatory environment and calm the neuroinflammation in the spinal cord..
3.Conventional Therapeutic Approaches and Their Inherent Limitations
Currently, the treatment of amyotrophic lateral sclerosis is predominantly based on a small number of approved medications, namely, Riluzole and Edaravone. Riluzole acts mainly by blocking glutamate release, as an excess concentration of glutamate is highly neurotoxic. Edaravone, in contrast, is an antioxidant to ameliorate oxidative stress. The basis of these therapies is to prolong life; in this context, the effect of the therapies is limited in that they extend life for several months, and they do not prevent the progression of the disease or restore lost motor functions. Aside from medications, the patients require multidisciplinary support, which includes respiratory support and physiotherapy. These interventions are compensatory and not remediating. The primary drawback of conventional therapy is the inability to bridge the disconnected circuit between the brain and muscles through the replacement of dead neurons. As the disease progresses, the body becomes resistant to more passive means of intervention, thereby creating a greater demand for more aggressive, biologically active means of intervention that operate at the genomic and cellular levels.
4. Rationale for Transition to Regenerative Biological Models
The transition to using a Stem Cell as the main tool for addressing amyotrophic lateral sclerosis arises from the complex nature of the disease. Unlike single-target drugs, cellular therapy is much more versatile. One of the core reasons for this transition is the fact that these cells can home in on the target areas that have been injured. Once inside the body, they can detect damaged regions of the central nervous system, and migrate there, directed by the chemical signal released by the stressed tissue.
Once they arrive at the target area, these cells can perform so-called bystander functions. For example, they can remove certain toxic debris and help to enhance mitochondrial functioning in other remaining healthy neurons. Amyotrophic lateral sclerosis is not only a disease of the motor neurons; it is a disease of the glial cells as well. With the goal of replacing the nonfunctional glia with healthy and functional glial cells derived from a Stem Cell source, we can potentially establish a “firebreak” that will slow down the progress of degeneration to the entire spinal cord and motor cortex. This combined systemic and localized action cannot be achieved by any conventional pill.
5. Future Horizons and Strategic Importance of Thailand
Thailand is unique in providing a combination of highly regulated clinical practice, state-of-the-art high-tech research, and a focus on Stem Cell technologies. The Thai government recognizes the advancements in regenerative medicine to address the needs of an ever-expanding aging population and of patients with rare, difficult-to-treat conditions. Therefore, Thailand is well positioned to conduct this specialized research. Thorough clinical and ethical considerations define this robust environment. The rising demand worldwide for conducting longitudinal studies on amyotrophic lateral sclerosis justifies the high quality of service and cost-effectiveness of the Thai option. Neuroregeneration research, especially focused on amyotrophic lateral sclerosis, is at the cutting edge of medicine, and Thailand’s strategic location in the Southeast Asian region gives it the advantage of being the regional focus of advanced and modern research with the goal of making next generation medicine available to patients in the region.