Formation of Human Prostate Epithelium Using Tissue Recombination of Rodent Urogenital Sinus Mesenchyme and Human Stem Cells

Yi Cai; Steven Kregel; Donald J. Vander Griend

doi:10.3791/50327

Formation of Human Prostate Epithelium Using Tissue Recombination of Rodent Urogenital Sinus Mese...

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Formation of Human Prostate Epithelium Using Tissue Recombination of Rodent Urogenital Sinus Mesenchyme and Human Stem Cells

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08:44 min

June 22, 2013

DOI: 10.3791/50327-v

Yi Cai¹, Steven Kregel², Donald J. Vander Griend^1,2

¹Department of Surgery, Section of Urology,University of Chicago, ²Committee on Cancer Biology,University of Chicago

Overview

This study focuses on isolating rodent urogenital sinus mesenchyme (UGSM) to investigate its potential in forming human prostate epithelium. By combining UGSM with pluripotent stem cells and implanting the mixture into a host mouse's renal capsule, researchers aim to understand prostate cancer initiation mechanisms.

Key Study Components

Area of Science

Prostate cancer research
Stem cell biology
Regenerative medicine

Background

Prostate cancer is a significant health issue.
Understanding early molecular mechanisms is crucial for prevention.
Human model systems are needed for effective research.
UGSM has potential in prostate epithelium formation.

Purpose of Study

To isolate UGSM from rodent embryos.
To explore UGSM's ability to induce human prostate epithelium.
To develop a model for studying prostate cancer initiation.

Methods Used

Isolation of urogenital sinus from rodent embryos.
Separation of UGSM from epithelium.
Combination of UGSM with pluripotent stem cells.
Implantation of the cell mixture under the renal capsule of a host mouse.

Main Results

Successful formation of human prostate epithelium on mouse kidney.
Validation through human-specific PSA expression.
Demonstration of UGSM's potential in prostate research.
Insights into the molecular mechanisms of prostate cancer initiation.

Conclusions

UGSM can effectively induce human prostate epithelium formation.
This model provides a valuable tool for prostate cancer research.
Further studies are needed to explore underlying mechanisms.

Frequently Asked Questions

What is UGSM?

UGSM stands for urogenital sinus mesenchyme, a tissue that can induce the formation of prostate epithelium.

Why is this research important?

Understanding the mechanisms of prostate cancer initiation can lead to better prevention and treatment strategies.

How is the UGSM isolated?

UGSM is isolated from rodent embryos by separating it from the epithelium of the urogenital sinus.

What is the role of pluripotent stem cells in this study?

Pluripotent stem cells are combined with UGSM to form human prostate epithelium in the experimental model.

What were the main findings of the study?

The study found that UGSM can induce the formation of human prostate epithelium, validated by PSA expression.

What future research could stem from this study?

Future research could explore the detailed molecular mechanisms of prostate cancer initiation using this model.

To unravel the earliest molecular mechanisms underlying prostate cancer initiation, novel and innovative human model systems and approaches are desperately needed. The potential of pre-prostatic urogenital sinus mesenchyme (UGSM) to induce pluripotent stem cell populations to form human prostate epithelium is a powerful experimental tool in prostate research.

The overall goal of this procedure is to isolate rodent urogenital, sinus mesenchyme or UGSM from rodent embryos and implant tissue mixtures into the renal capsule that can form human prostate epithelium. This is accomplished by first isolating the urogenital sinus from mouse or rat embryos. Next, the urogenital sinus mesenchyme is separated from the epithelium.

Then single cell suspensions of urogenital sinus mesenchyme are combined with pluripotent stem cells. Finally, the cell mixture is implanted under the renal capsule of a host mouse. Ultimately, results can be obtained that show human prostate epithelium formed on the mouse kidney through validation of human specific PSA expression.

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