Production of knockout mice by random or targeted mutagenesis in spermatogonial stem cells.

Melatonin improves spermatogonial stem cells transplantation efficiency in azoospermic mice

Objective(s):Transplantation quality improvement and reduction of cellular damage are important goals that are now considered by researchers. Melatonin is secreted from the pineal gland and some organs such as testes. According to beneficial effects of melatonin (such as its antioxidant and antiapoptotic properties), researchers have proposed that the use of melatonin may improve transplantatio...

Comparing the Expression Levels of Alkaline Phosphatase, Gfra1, Lin28, and Sall4 Genes in Embryonic Stem Cells, Spermatogonial Stem Cells, and Embryonic Stem-Like Cells in Mice

Background and purpose: Spermatogenesis is a well-organized process that is influenced by a variety of factors. Alkaline phosphatase, and Gfra1, Lin28, and Sall4 genes are among the key players in this interconnected process. This study aimed to investigate the expression levels of Gfra1, Lin28, and Sall4 genes in embryonic, spermatogonial, and embryonic stem-like (ES-like) cells in mice. Mate...

O-19: Proliferation of Small Population of Spermatogonial Stem Cells in Azoospermic Patients

Background: With treatment success in young boys with cancer, long-term effects of cancer treatment have found importance in pediatric oncology. Temporary or permanent infertility after treatment is an important subject in childhood and adult cancer patients which decrease quality of life. The one approach to overcome infertility in these cases is to cryopreserve small biopsy testicular tissue ...

Comparison of Neonatal and Adult Mice-derived Sertoli Cells in Support of Expansion of Mouse Spermatogonial Stem Cells In vitro

Efficient Production of Biallelic RAG1 Knockout Mouse Embryonic Stem Cell Using CRISPR/Cas9

Background: Recombination Activating Genes (RAG) mutated embryonic stem cells are (ES) cells which are unable to perform V (D) J recombination. These cells can be used for generation of immunodeficient mouse. Creating biallelic mutations by CRISPR/Cas9 genome editing has emerged as a powerful technique to generate site-specific mutations in different sequences. Ob...