Testicular extracellular matrix/gelatin-based scaffold using gas foaming to support spermatogonial stem cells

Objective(s): Developing a bioactive testicular scaffold has been proposed as a potential option to preserve male fertility. Using the gas foaming method, this study aimed to fabricate an effective and highly porous scaffold derived from a gelatin-testicular extracellular matrix. Materials and Metho...

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Main Authors: Maryam Momeni, Mohammad Kazemi Ashtiani, Zahra Bashiri, Zohreh Bagher, Hamid Reza Asgari, Morteza Koruji
Format: Article
Language:English
Published: Mashhad University of Medical Sciences 2025-08-01
Series:Iranian Journal of Basic Medical Sciences
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Online Access:https://ijbms.mums.ac.ir/article_26062_0c88602dacc232ff4f8a1d46a8da1f5b.pdf
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author Maryam Momeni
Mohammad Kazemi Ashtiani
Zahra Bashiri
Zohreh Bagher
Hamid Reza Asgari
Morteza Koruji
author_facet Maryam Momeni
Mohammad Kazemi Ashtiani
Zahra Bashiri
Zohreh Bagher
Hamid Reza Asgari
Morteza Koruji
author_sort Maryam Momeni
collection DOAJ
description Objective(s): Developing a bioactive testicular scaffold has been proposed as a potential option to preserve male fertility. Using the gas foaming method, this study aimed to fabricate an effective and highly porous scaffold derived from a gelatin-testicular extracellular matrix. Materials and Methods: Male ram testis decellularization was performed using a combination of NaCl buffer and Triton. Then, evaluations were done for 4′,6-diamidino-2-phenylindole, hematoxylin-eosin staining, and quantitative DNA content. Masson’s trichrome, Alcian blue, and orcein staining were conducted to ensure the maintenance of ECM components post-decellularization. Porous scaffolds were fabricated using gelatin incorporation with various concentrations of extracted ECM via the gas foaming method. The mechanical and structural characteristics of the scaffolds, along with evaluations of cell spreading and penetration depth, were performed. Furthermore, scaffolds were used to culture mouse spermatogonial stem cells to investigate the morphology, viability, and adhesion of the cells on the scaffolds.Results: Our results showed successful decellularization of testicular tissue, resulting in significant removal of DNA content while preserving ECM major components. The hybrid scaffolds exhibited uniform porous microstructures with a pore size average ranging from 298-330 μm. There were no significant differences in biodegradation and swelling ratios between the scaffolds. The cell penetration index significantly increased in gel-ECM by 5% compared to other groups. Also, ECM5% led to increased cell attachment and viability, proper compressive strength, and a decrease in Young’s module. Conclusion: Our study suggests that using a combination of testicular ECM and gelatin shows promise in constructing bioartificial testes through the gas-foaming method.
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spelling doaj-art-6a6f22b8b6c7490c9904bc7b439e09b62025-07-27T09:52:45ZengMashhad University of Medical SciencesIranian Journal of Basic Medical Sciences2008-38662008-38742025-08-012881107111810.22038/ijbms.2025.83885.1815026062Testicular extracellular matrix/gelatin-based scaffold using gas foaming to support spermatogonial stem cellsMaryam Momeni0Mohammad Kazemi Ashtiani1Zahra Bashiri2Zohreh Bagher3Hamid Reza Asgari4Morteza Koruji5Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, IranDepartment of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, IranEndometrium and Endometriosis Research Center, Hamadan University of Medical Sciences, Hamadan, IranENT and Head and Neck Research Center and Department, The Five Senses Health Institute, School of Medicine, Iran University of Medical Sciences, Tehran, IranDepartment of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, IranStem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, IranObjective(s): Developing a bioactive testicular scaffold has been proposed as a potential option to preserve male fertility. Using the gas foaming method, this study aimed to fabricate an effective and highly porous scaffold derived from a gelatin-testicular extracellular matrix. Materials and Methods: Male ram testis decellularization was performed using a combination of NaCl buffer and Triton. Then, evaluations were done for 4′,6-diamidino-2-phenylindole, hematoxylin-eosin staining, and quantitative DNA content. Masson’s trichrome, Alcian blue, and orcein staining were conducted to ensure the maintenance of ECM components post-decellularization. Porous scaffolds were fabricated using gelatin incorporation with various concentrations of extracted ECM via the gas foaming method. The mechanical and structural characteristics of the scaffolds, along with evaluations of cell spreading and penetration depth, were performed. Furthermore, scaffolds were used to culture mouse spermatogonial stem cells to investigate the morphology, viability, and adhesion of the cells on the scaffolds.Results: Our results showed successful decellularization of testicular tissue, resulting in significant removal of DNA content while preserving ECM major components. The hybrid scaffolds exhibited uniform porous microstructures with a pore size average ranging from 298-330 μm. There were no significant differences in biodegradation and swelling ratios between the scaffolds. The cell penetration index significantly increased in gel-ECM by 5% compared to other groups. Also, ECM5% led to increased cell attachment and viability, proper compressive strength, and a decrease in Young’s module. Conclusion: Our study suggests that using a combination of testicular ECM and gelatin shows promise in constructing bioartificial testes through the gas-foaming method.https://ijbms.mums.ac.ir/article_26062_0c88602dacc232ff4f8a1d46a8da1f5b.pdfgas foamingpore sizescaffoldspermatogonial stem celltesticular extracellular- matrix
spellingShingle Maryam Momeni
Mohammad Kazemi Ashtiani
Zahra Bashiri
Zohreh Bagher
Hamid Reza Asgari
Morteza Koruji
Testicular extracellular matrix/gelatin-based scaffold using gas foaming to support spermatogonial stem cells
Iranian Journal of Basic Medical Sciences
gas foaming
pore size
scaffold
spermatogonial stem cell
testicular extracellular- matrix
title Testicular extracellular matrix/gelatin-based scaffold using gas foaming to support spermatogonial stem cells
title_full Testicular extracellular matrix/gelatin-based scaffold using gas foaming to support spermatogonial stem cells
title_fullStr Testicular extracellular matrix/gelatin-based scaffold using gas foaming to support spermatogonial stem cells
title_full_unstemmed Testicular extracellular matrix/gelatin-based scaffold using gas foaming to support spermatogonial stem cells
title_short Testicular extracellular matrix/gelatin-based scaffold using gas foaming to support spermatogonial stem cells
title_sort testicular extracellular matrix gelatin based scaffold using gas foaming to support spermatogonial stem cells
topic gas foaming
pore size
scaffold
spermatogonial stem cell
testicular extracellular- matrix
url https://ijbms.mums.ac.ir/article_26062_0c88602dacc232ff4f8a1d46a8da1f5b.pdf
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