Mitochondrial cardiomyopathy occurs when cardiomyocytes possess defective mitochondrial DNA. There is no cure and current treatment involves providing patients various dietary supplements. A novel biotherapy in which healthy mitochondria are transplanted directly into cells can help pave the way for treating mitochondrial-related diseases.Mitochondrial cardiomyopathy occurs when cardiomyocytes possess defective mitochondrial DNA. There is no cure and current treatment involves providing patients various dietary supplements. A novel biotherapy in which healthy mitochondria are transplanted directly into cells can help pave the way for treating mitochondrial-related diseases.
·Treatment of diseases related to mitochondrial impairment
·Method does not necessitate the removal of diseased tissues or defective cells
·pH dependent method of determining successful mitochondrial determination is sensitive/specific
The mitochondria, an organelle found inside an individual cell, is responsible for providing cellular energy. Improper function of the mitochondria can lead to organ dysfunction due to an insufficient energy supply. Patients suffering from mitochondrial impairment can present symptoms at any age with almost any affected body organ/system. In particular, mitochondrial cardiomyopathy, a heart disorder characterized by abnormal myocardial structure and/or function, may occur due to defected mitochondrial DNA. In severe cases of mitochondrial cardiomyopathy, patients can suffer from arrhythmias, heart failures, or even sudden cardiac deaths. Currently, patients suffering from mitochondrial cardiomyopathy receive a mitochondrial cocktail, which contains a variety of vitamins and supplements, to manage this condition. Currently, there are no ways to corrects for mitochondrial myopathy.
The treatment proposed by UCI researchers features mitochondrial transplantation by administering isolated mitochondria. Inventors have demonstrated feasibility of such a technique in cardiomyocyte-like cells derived from rat embryonic hearts. Mitochondrial DNA were isolated using commercially available kits followed by staining with a pH dependent stain that fluoresce only after successful uptake and internalization by another cell. Native mitochondrial are labeled with a separate dye to distinguish the two types of mitochondria. It was observed that uptake can occur as early as 4 hours and internalized mitochondria remain in the new host cells for up to 28 hours. Furthermore, the internalized mitochondria are intact and believed to be viable.
Overall, this treatment is attractive because it does not require the removal of existing cells. Instead, this technique focuses on repairing existing cells by replacing defective mitochondria. As a result of the healthy mitochondrial uptake, cellular function can be restored and/or enhanced.
Inventors have successfully observed the internalization of isolated mitochondria into cells.
|United States Of America||Published Application||2020/018157||06/11/2020||2018-234|
Additional Patents Pending