SOX9-positive cells
SOX9 is a transcription factor that helps identify particular cell states. Research in mice after partial nephrectomy observed the activation of these cells and the repair process.
KIDNEY LONGEVITY
Cell identification, repair signals and renal tubular organoids, explored across six studies
THE QUESTION
The kidneys carry out essential functions in filtration, metabolism and the body’s internal balance. Science continues to investigate how their cells respond to injury and contribute to repair.
Our research interest in kidney longevity focuses on how kidney cells repair and renal tubules regenerate.
INFINITE BLUEPRINT focuses on kidney progenitor cells and renal tubular repair, developing topical products through original ingredients.
REPAIR & SIGNALS
SOX9 is a transcription factor that helps identify particular cell states. Research in mice after partial nephrectomy observed the activation of these cells and the repair process.
Notch is a signaling pathway through which cells communicate. Using tissue staining and molecular experiments, researchers explored its relationship with the activation of SOX9-positive cells.
Cells can also affect surrounding tissue through their secretions. A 2023 study further investigated this paracrine activity, including S100A9 as a candidate factor.
BUILDING TUBULAR ORGANOIDS
A 2023 study in Life Medicine generated renal tubular organoids from adult SOX9-positive kidney progenitor cells, using single-cell sequencing to examine their cell types and states.
Renal tubular organoids are three-dimensional cell structures grown outside the body to study how renal tubules form and repair.
Read the renal tubular organoid studyFROM SCIENCE TO LIFE
Experiments with cells, animal models and in vitro tissues progressively clarify the mechanisms of repair.
View papersKidney progenitor cell technology is being studied in a Phase I clinical trial at medical institutions, focusing on safety and tolerability.
View clinical progressBio-Pilot Essence is a topical essence formulated with kidney-derived extract as a skin-conditioning ingredient.
Explore this productREAD THE SCIENCE
2018 · Life Sci
In a mouse model of partial nephrectomy, Notch signaling was involved in activating Sox9-positive cells, and renal tubular repair was observed.
2021 · Protein Cell
A single-cell atlas of adult urine identified SOX9-positive kidney progenitor cells. After intrarenal transplantation, human-derived cell clones formed luminal structures with some renal tubular features in injured immunodeficient mice.
2023 · Cell Prolif
SOX9-positive renal epithelial cells showed secretion-related characteristics in injury models. Cell implantation or administration of conditioned medium promoted repair in mice, with S100A9 identified as a candidate key secreted factor.
2023 · Life Med
Adult SOX9-positive kidney progenitor cells formed renal tubular organoids under specific in vitro culture conditions. Cell types were analyzed by single-cell sequencing.
2023 · Clin Kidney J
An observational single-cell analysis of urine from healthy individuals and patients with different membranous nephropathy outcomes identified differences in macrophage origins and functions.
2023 · Theranostics
Lineage tracing and single-cell sequencing in a mouse model of severe acute kidney injury supported the contribution of WT1-positive glomerular parietal epithelial progenitor cells to proximal tubule regeneration.
BIO-PILOT ESSENCE / 003
1g × 7 applicators · Made in Japan
View productORIGINAL INGREDIENT

INCI · International Nomenclature of Cosmetic Ingredients
Human Kidney Tubule Epithelial Stem Cell Extract

JCIA · Japanese ingredient labeling name
Human Kidney Tubule Epithelial Stem Cell Extract