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• W4288045892 endingPage "841" @default.
• W4288045892 startingPage "824" @default.
• W4288045892 abstract "Since autologous stem cell transplantation is prone to cancer recurrence, in vitro sperm production is regarded a safer approach to fertility preservation. In this study, the spermatogenesis process on testicular tissue extracellular matrix (T-ECM)-derived printing structure was evaluated. Ram testicular tissue was decellularized using a hypertonic solution containing triton and the extracted ECM was used as a bio-ink to print an artificial testis. Following cell adhesion and viability examination, pre-meiotic and post-meiotic cells in the study groups (as testicular suspension and co-culture with Sertoli cells) were confirmed by real-time PCR, flow-cytometry and immunocytochemistry methods. Morphology of differentiated cells was evaluated using transmission electron microscopy (TEM), toluidine blue, Giemsa, and hematoxylin and eosin (H&E) staining. The functionality of Leydig and Sertoli cells was determined by their ability for hormone secretion. The decellularization of testicular tissue fragments was successful and had efficiently removed the cellular debris and preserved the ECM compounds. High cell viability, colonization, and increased expression of pre-meiotic markers in cultured testicular cells on T-ECM-enriched scaffolds confirmed their proliferation. Furthermore, the inoculation of neonatal mouse testicular cells onto T-ECM-enriched scaffolds resulted in the generation of sperm. Morphology evaluation showed that the structure of these cells was quite similar to mature sperm with a specialized tail structure. The hormonal analysis also confirmed production and secretion of testosterone and inhibin B by Leydig and Sertoli cells. T-ECM printed artificial testis is a future milestone that promises for enhancing germ cell maintenance and differentiation, toxicology studies, and fertility restoration to pave the way for new human infertility treatments in the future." @default.
• W4288045892 created "2022-07-27" @default.
• W4288045892 creator A5008151158 @default.
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• W4288045892 date "2022-09-01" @default.
• W4288045892 modified "2023-10-16" @default.
• W4288045892 title "In vitro production of mouse morphological sperm in artificial testis bioengineered by 3D printing of extracellular matrix" @default.
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• W4288045892 doi "https://doi.org/10.1016/j.ijbiomac.2022.07.127" @default.
• W4288045892 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35905760" @default.
• W4288045892 hasPublicationYear "2022" @default.

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