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Retinal Pigment Epithelium Transplantation in a Non-human Primate Model for Degenerative Retinal Diseases

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Retinoids and glomerular regeneration.

Elena Lazzeri¹, Anna Julie Peired², Laura Lasagni¹

¹Excellence Centre for Research, Transfer and High Education for the Development of de novo Therapies, University of Florence, Florence, Italy.

Seminars in Nephrology

|September 14, 2014

Summary

Retinoids, like all-trans retinoic acid, are vital for kidney stem cell differentiation into podocytes. Understanding this process may reveal new ways to combat glomerulosclerosis.

Keywords:

Retinoic acid glomerular regeneration kidney

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Published on: August 19, 2020

Area of Science:

Nephrology
Developmental Biology
Stem Cell Biology

Background:

Retinoids regulate gene transcription and stem cell differentiation across multiple organs.
In the kidney, retinoids are protective against injury and improve function in disease models.
Recent studies highlight retinoids' role in promoting renal progenitor differentiation into podocytes.

Purpose of the Study:

To explore the role of retinoid signaling in renal progenitor differentiation into podocytes.
To investigate the impact of proteinuria on retinoic acid-mediated podocyte differentiation.
To understand how retinoic acid administration affects podocyte regeneration.

Main Methods:

Analysis of retinoid effects on renal progenitor cells.
Investigation of gene transcription alterations induced by all-trans retinoic acid.
Assessment of retinoic acid sequestration by albumin in the context of proteinuria.

Main Results:

All-trans retinoic acid drives stem cell differentiation by altering gene transcription.
Retinoids promote renal progenitor differentiation into mature podocytes.
Proteinuria impairs retinoic acid-induced podocyte differentiation due to albumin binding.
Retinoic acid administration can reverse renal progenitor differentiation and promote podocyte regeneration.

Conclusions:

Retinoid signaling is crucial for podocyte development and regeneration.
Impaired retinoid function due to proteinuria contributes to kidney disease progression.
Further understanding of retinoid-dependent podocyte differentiation offers insights into glomerulosclerosis mechanisms.