International Journal of Clinical Science and Medical Research ISSN(print): 2770-5803, ISSN(online): 2770-582X Volume 05 Issue 10 October 2025 DOI: https://doi.org/10.55677/IJCSMR/V5I10-08/2025, Impact Factor: 8.005 Page No : 264-271 264 Available at: https://journalofmedical.org/ Exploring Nephron Repair via Embryonic Stem Cells: A Review of Stem Cell- Based Kidney Therapies Vica Hilda Amelia 1 , Muhammad Hamza Mubarak 2 , Riyas Hasan Yazid 3 , Ika Fidianingsih 4 1,2,3 Faculty of medicine, Universitas Islam Indonesia, Indonesia 4 Department of Histology, Universitas Islam Indonesia, Indonesia ABSTRACT Published Online: October 28, 2025 The nephron, the functional unit of the kidney, is responsible for filtration, reabsorption, and secretion, critical processes for maintaining systemic homeostasis. Damage to nephrons due to pathological conditions such as diabetic nephropathy, glomerulonephritis, and ischemic acute kidney injury can lead to irreversible renal dysfunction and progression to end-stage renal disease. Although current therapeutic options such as dialysis and kidney transplantation have alleviated the symptoms of renal failure, there is no curative treatment to restore native nephron function. Recent advances in regenerative medicine, particularly through the use of embryonic stem cells (ESCs), have shown promising potential in nephron repair. ESCs, due to their pluripotency, possess the ability to differentiate into various renal cell types, including podocytes, proximal tubular cells, and renal endothelial cells, all of which are vital components for nephron regeneration. Studies have demonstrated that renal progenitor cells derived from embryonic stem cells are capable of integrating into injured nephron structures, facilitating tissue repair, and contributing to the partial recovery of renal function in various experimental models. Nevertheless, significant obstacles remain, including immune compatibility, the refinement of differentiation techniques, and the assurance of long-term stability and functionality of regenerated nephron units. This review critically examines recent progress in ESC-mediated nephron regeneration, focusing on the molecular mechanisms that regulate nephron lineage commitment, advancements achieved in both experimental and translational studies, and the emerging therapeutic prospects for chronic kidney disease. The continued exploration of ESC-based therapies for nephron regeneration holds transformative potential for the future of nephrology, offering a novel approach to restoring renal function in patients with nephron loss. KEYWORDS: Embryonic Stem Cells, Nephrons, Kidney Diseases, Regenerative Medicine, Cell Differentiation INTRODUCTION The nephron, a critical functional unit of the kidney, plays a crucial role in maintaining overall bodily homeostasis. It regulates fluid levels, electrolyte balance, acid-base equilibrium, and waste elimination through processes like filtration and reabsorption. The nephron is composed of multiple segments, such as the glomerulus, proximal and distal convoluted tubules, the loop of Henle, and collecting ducts, all of which collectively support the kidney's essential Corresponding Author: Vica Hilda Amelia *Cite this Article: Vica Hilda Amelia, Muhammad Hamza Mubarak, Riyas Hasan Yazid, Ika Fidianingsih (2025). Exploring Nephron Repair via Embryonic Stem Cells: A Review of Stem Cell-Based Kidney Therapies. International Journal of Clinical Science and Medical Research, 5(10), 264-271 functions. These functions include blood filtration, blood pressure regulation, and metabolic equilibrium (Gantsova et al., 2024). However, when the nephrons are damaged, the kidney's ability to perform these tasks is compromised, leading to a range of systemic complications. Conditions like diabetic nephropathy, glomerulonephritis, hypertensive nephropathy, and acute kidney injury (AKI) often result in nephron loss, which is a significant factor in the progression of chronic renal failure. These diseases cause irreversible damage to nephron structures, and if left untreated, can lead to end-stage renal disease (ESRD) (Gusev et al., 2021). The gradual loss of nephron function is reflected in a decrease in glomerular filtration rate (GFR), which may eventually require interventions such as dialysis or a kidney transplant. Despite these interventions, they are not curative and present their own set of challenges, including high costs, risk of infections, and complications related to organ