Latest Advances in Stem Cell Research

Stem cell research is a continuously expanding area of regenerative medicine. Researchers and scientists have been investigating new ways to understand and harness the unique properties of stem cells to help advance multiple areas of medicine. ⁽¹⁾ In this guide, we will review key developments to keep you up-to-date on the latest in stem cell research.

Dr. John C. Haasis III is the medical director and founder of the Daisy Institute, the Carolinas’ premier stem cell and regenerative medicine center. He is a board-certified and fellowship-trained pain management anesthesiologist with more than 25 years of experience, and he is dedicated to helping each of his patients improve their lives through innovative regenerative medicine.

To learn more about how stem cells might benefit you, please schedule a consultation online or call (864) 775-5682 to reach the office nearest you:

About Stem Cell Research

Stem cell research plays a crucial role in advancing medical science, particularly in the field of regenerative medicine. Research involves trials and studies aimed at understanding how stem cells can replace, restore, and repair various tissues throughout the body.

Some of the latest advances and cutting-edge breakthroughs in stem cell research include bringing stem cells into microgravity, as well as using stem cells for retinal regeneration. With every new trial, researchers get closer to transforming the field of medicine as we know it.

Types of Stem Cells

There are several different types of stem cells found within the body, but not all types have been widely studied in either clinical or experimental research. Specific types of stem cells are used based on their potential for regenerative medicine, product development, and more.

Pluripotent Stem Cells

Pluripotent stem cells are a type of stem cell that can differentiate into any other type of cell within the body, excluding placenta cells or support tissues. Pluripotent stem cells are formed from early embryos, right after the egg and sperm fuse to create a blastocyst.

Multipotent Stem Cells

Multipotent stem cells can transform into a range of specialized cells that perform certain biological functions. These cells may also be referred to as progenitor cells, and often exist within the bone marrow.

Stem Cells in Microgravity

One of the most exciting advances in stem cell research is the research performed in microgravity aboard the International Space Station. Many researchers are exploring the potential for developing and growing stem cells in space for use on Earth.

On the ISS, researchers tested the effects of microgravity on MSCs, HSCs, and CPCs.

Effects of Microgravity on Mesenchymal Stem Cells

When MSCs were sent to space, it was found that they had shown promise for use in cell-based therapies for central nervous system diseases and pathologies. Results from testing showed that while in space, mice bone marrow-derived MSCs showed increased neural development, neural morphogenesis, and nerve impulses.

In the same study, brain-injured mice showed greater motor functional recovery after being transplanted with MSCs in space compared to those on Earth. Similar results were found when MSCs cultured in simulated microgravity were transplanted into a rat with a spinal cord injury. It was also found that MSCs cultured in space had higher anti-inflammatory properties. ⁽⁵⁾

Effects of Microgravity on Hematopoietic Stem Cells

When compared to samples performed on Earth, HSCs cultured in space demonstrated an alteration in the way blood cells are formed. When HSCs were brought to the ISS, they showed a decline in the development of both myeloid and erythroid progenitor cells, two precursors to blood cells. However, there was also an increased amount of mature macrophages (a type of immune cell), indicating that microgravity can alter specific biological processes, particularly those involving HSCs. ⁽⁵⁾

Effects of Microgravity on Cardiovascular Progenitor Cells

On the ISS, both neonatal and adult CPCs were cultured and evaluated. Both of these cell types showed an increase in DNA repair genes, enhanced migration, and cell communication. The neonatal cells increased early expressions of proliferative potential, but both types of CPCs activated the yes-associated protein (YAP1). This is a gene that indicates heart regeneration, showing potential benefits for overall cardiovascular repair. This discovery is significant, as the human heart has limited regeneration capacities. ⁽⁵⁾

Using Stem Cells for Retinal Regeneration

Stem cell-based research for retinal regeneration is a growing field in regenerative ophthalmology. Retinal regeneration is highly important as eye disorders are common and can severely affect the lives of millions. ⁽⁶⁾ When performing clinical trials, it was found that while there are favorable visual outcomes, there is still much more research to be done to help minimize serious adverse effects and achieve consistent results.

Embryonic Stem Cells for Retinal Regeneration

ESCs have been widely researched due to their ability to repair and differentiate into several different types of cells, and they have even been shown to differentiate into retinal pigment epithelial (RPE) cells when the right signals are transmitted.

hESCs-derived RPE (hESC-RPE) cells are essential for restoring the vision of those with retinal degenerative diseases; however, one of the main roadblocks to further research has been the immune rejection of transplanted stem cells. To reduce rejection risk, patients have received immunosuppressants, or researchers have used gene editing to modify genes responsible for immune responses. These modifications have shown potential in preclinical models, but further research is needed to ensure the safety and efficacy of hESC-RPEs. ⁽²⁾

Induced Pluripotent Stem Cells for Retinal Regeneration

iPSCs have demonstrated potential for repairing and replacing lost retinal tissue, as these cells can differentiate into almost any cell within the body. iPSCs have been shown to transform into photoreceptors, RPE cells, and retinal ganglion cells (RGCs), which are each necessary for vision function. ⁽⁶⁾ These cells share many characteristics with hESCs, and because these cells are made from each patient’s own cells, there is no risk of immune rejection or the need for immunosuppressing medications. Despite their potential for retinal regeneration, iPSCs have limited clinical experience, longer development times, and higher overall costs. ⁽²⁾

Mesenchymal Stem Cells for Retinal Regeneration

MSCs have been researched for retinal regeneration as they exhibit remarkable plasticity and can differentiate into a range of diverse cells. Traditionally, these cells tend to evolve into osteoblasts, chondrocytes, and adipocytes, which develop into new bone, cartilage, and fat storage cells, respectively. However, recent findings have also shown potential for MSCs to differentiate into retinal cells.

These cells secrete various trophic factors and cytokines, which are small proteins that offer neuroprotective effects and can help the damaged retina heal. Additionally, MSCs can reduce apoptosis, or cell death, and can integrate themselves into damaged retinal layers to potentially revitalize their functionality and structure. When used in clinical trials, it was found that four patients with an advanced stage of retinitis pigmentosa showed slight improvements in vision after receiving an injection of MSCs. ⁽²⁾

Cost of Stem Cell Treatments in South Carolina

The cost of your stem cell treatment can vary depending on the treatment being performed, the conditions being addressed, the extent of correction, whether any additional procedures are performed, and a handful of other factors. During your consultation, Dr. Haasis will review the cost of your treatment.

To schedule a consultation and receive the cost of your personalized stem cell treatment, please contact us online or call (864) 775-5682 to reach the office most convenient to you:

References

1. Hussen BM, Taheri M, Yashooa RKh, et al. Revolutionizing medicine: Recent developments and prospects in stem-cell therapy. International Journal of Surgery. 2024;110(12). doi:https://doi.org/10.1097/js9.0000000000002109
2. Radu M, Daniel Constantin Brănișteanu, Ruxandra Angela Pirvulescu, Otilia Maria Dumitrescu, Mihai Alexandru Ionescu, Zemba M. Exploring Stem-Cell-Based Therapies for Retinal Regeneration. Life. 2024;14(6):668-668. doi:https://doi.org/10.3390/life14060668
3. Zakrzewski W, Dobrzyński M, Szymonowicz M, Rybak Z. Stem cells: past, present, and future. Stem Cell Research & Therapy. 2019;10(1). https://stemcellres.biomedcentral.com/articles/10.1186/s13287-019-1165-5
4. Medvedev S, Shevchenko A, Zakian S. Induced Pluripotent Stem Cells: Problems and Advantages when Applying them in Regenerative Medicine. Acta Naturae. 2010;2(2):18. https://pmc.ncbi.nlm.nih.gov/articles/PMC3347549/
5. Ghani F, Zubair AC. Discoveries from human stem cell research in space that are relevant to advancing cellular therapies on Earth. npj Microgravity. 2024;10(1). doi:https://doi.org/10.1038/s41526-024-00425-0
6. Lath YV, Thool AR, Jadhav I. Regeneration of the Retina Using Pluripotent Stem Cells: A Comprehensive Review. Curēus. Published online February 2, 2024. doi:https://doi.org/10.7759/cureus.53479