# Advanced 3Dimentional engineered microenvironment to improve of in vitro spermatogenesis

## TL;DR

This review explores how 3D culture systems can improve in vitro spermatogenesis for infertility treatment and germ cell preservation.

## Contribution

The paper provides a comprehensive review of 3D culture techniques for in vitro spermatogenesis, emphasizing regenerative medicine approaches.

## Key findings

- 3D culture systems offer a better microenvironment for spermatogenesis compared to traditional 2D methods.
- Current research integrates cell transplantation, material science, and bioengineering to support in vitro spermatogenesis.
- The techniques are still in development but show promise for future reproductive medicine applications.

## Abstract

Induction of in vitro spermatogenesis may be helpful in the
treatment of infertility in azoospermic individuals and those undergoing
chemotherapy. Different cultivation systems have been implemented to achieve
this aim. This review study aimed to investigate the application of
three-dimensional culture in the induction of in vitro
spermatogenesis. Relevant studies published in English were identified using
PubMed using a range of search terms related to the core focus on tissue
engineering of male reproductive systems, in vitro
spermatogenesis, germ cell preservation, 3D culture systems for in
vitro spermatogenesis, a 3D culture of testis tissue with were last
updated in end of 2023. Searches were not restricted to a particular time frame
or species, although the emphasis within the review is on regenerative medicine
in mammalian male fertility preservation and in vitro
spermatogenesis. Spermatogenesis is one of the most complicated cellular
differentiation processes in the body. Significant attempts have been made to
control spermatogenesis to drive differentiation of male germ stem cells toward
mature sperm. Current research efforts focus on providing appropriate
microenvironmental conditions to support the process of in
vitro spermatogenesis by applying the principles of cell
transplantation, material science, and bioengineering. Regenerative medicine may
open a new avenue to patients for restoration and maintenance of normal function
in spermatogenesis.

The techniques reviewed are still in development, and this paper can become the
primary reference for a large body of scientists developing advanced tissue
engineering for male germ cells or developing the next generation of
reproductive medicine.