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No One Can Truly Measure Exosomes: The Truth About Exosome Quantification
In this episode of The Recharge Biomedical Podcast, Edward Park, MD, MPH explores one of the most misunderstood topics in regenerative medicine: how exosomes are measured, quantified, and compared across different products.
Dr. Park discusses the challenges involved in accurately measuring exosomes, explaining that these microscopic extracellular vesicles are too small to be directly observed using standard optical microscopy. He reviews the technologies commonly used to estimate exosome size and concentration, including nanoparticle tracking analysis (Nanosight), and highlights the limitations and variability inherent in current measurement methods.
The conversation examines how stem cell culture conditions—including oxygen levels, temperature, pH, cellular stress, and cell age—can significantly influence exosome production and quality. Dr. Park also explains the importance of purification methods such as tangential flow filtration (TFF), which help remove larger contaminants including cells, microvesicles, and apoptotic bodies.
The episode further explores why particle count alone may not accurately reflect product quality. Dr. Park reviews the importance of analyzing biologically active components such as proteins and RNA contained within exosomes and discusses concerns that some commercially available products may consist primarily of conditioned media rather than highly purified exosomes.
Throughout the discussion, Dr. Park emphasizes the need for greater standardization, transparency, and independent testing within the exosome industry to help clinicians and patients make informed decisions.
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Dr. Edward Park, MD, MPH, is a physician, researcher, and author specializing in regenerative medicine. With degrees from Harvard and Columbia, Dr. Park has treated over 680 patients with exosomes, performing more than 3,300 procedures across IV, nasal, joint, tendon, and systemic applications. He is the author of Exosomes: Songs of Healing and an international lecturer on regenerative medicine.
- - - - -
Connect with Dr. Ed Park
Linkedin: https://www.linkedin.com/in/dredpark/
Instagram: https://www.instagram.com/dredpark/?hl=en
Website: www.rechargebiomedical.com
Recharge Biomedical | Substack
PODCAST
Thank you for listening.
Please subscribe and share.
This podcast is produced by DrTalks.com https://drtalks.com/podcast-service/
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By Ed Park, MD, MPHIn this episode of The Recharge Biomedical Podcast, Edward Park, MD, MPH explores one of the most misunderstood topics in regenerative medicine: how exosomes are measured, quantified, and compared across different products.
Dr. Park discusses the challenges involved in accurately measuring exosomes, explaining that these microscopic extracellular vesicles are too small to be directly observed using standard optical microscopy. He reviews the technologies commonly used to estimate exosome size and concentration, including nanoparticle tracking analysis (Nanosight), and highlights the limitations and variability inherent in current measurement methods.
The conversation examines how stem cell culture conditions—including oxygen levels, temperature, pH, cellular stress, and cell age—can significantly influence exosome production and quality. Dr. Park also explains the importance of purification methods such as tangential flow filtration (TFF), which help remove larger contaminants including cells, microvesicles, and apoptotic bodies.
The episode further explores why particle count alone may not accurately reflect product quality. Dr. Park reviews the importance of analyzing biologically active components such as proteins and RNA contained within exosomes and discusses concerns that some commercially available products may consist primarily of conditioned media rather than highly purified exosomes.
Throughout the discussion, Dr. Park emphasizes the need for greater standardization, transparency, and independent testing within the exosome industry to help clinicians and patients make informed decisions.
- - - - -
Dr. Edward Park, MD, MPH, is a physician, researcher, and author specializing in regenerative medicine. With degrees from Harvard and Columbia, Dr. Park has treated over 680 patients with exosomes, performing more than 3,300 procedures across IV, nasal, joint, tendon, and systemic applications. He is the author of Exosomes: Songs of Healing and an international lecturer on regenerative medicine.
- - - - -
Connect with Dr. Ed Park
Linkedin: https://www.linkedin.com/in/dredpark/
Instagram: https://www.instagram.com/dredpark/?hl=en
Website: www.rechargebiomedical.com
Recharge Biomedical | Substack
PODCAST
Thank you for listening.
Please subscribe and share.
This podcast is produced by DrTalks.com https://drtalks.com/podcast-service/