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How can induced pluripotent stem cells help researchers test potential new drugs?
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Stem cells of neural and hematopoietic origin have tremendous potential in the development of therapies for certain diseases, such as diabetes and Parkinson disease. Neural stem cells occur in the spinal cord and in specific regions of the brain, and hematopoietic stem cells occur in the blood and bone marrow.
Induced pluripotent stem cells (iPS cells) are transformative tools in drug development because they allow researchers to create human models of disease in the laboratory. By reprogramming a patientās own adult cellsāsuch as skin cellsāinto a pluripotent state, scientists can generate cells that carry the specific genetic mutations associated with that patient's condition.12
These patient-specific cells can be used in several ways to test new drugs:
- Disease Modeling: Researchers can differentiate iPS cells into the specific cell types affected by a disease, such as neurons for Alzheimer disease or amyotrophic lateral sclerosis, to observe disease mechanisms in a controlled environment.2
- Drug Screening: These models serve as platforms to screen potential new drugs for safety and effectiveness, allowing scientists to observe how specific tissues respond to treatment before clinical trials.12
- Personalized Medicine: Because the cells contain the patient's unique genetic makeup, they enable the investigation of personalized treatments, helping researchers understand how different individuals might respond to various therapies.1
By providing a human-derived alternative to animal models, iPS cells help bridge the gap between laboratory research and clinical application.12