Freeze-dried spermatozoa [10] and nuclei of spermatids in frozen mouse testes without cryoprotectant [11], when injected into oocytes, could produce normal pups, indicating that genomic integrity was maintained in some dead male gametes after freezing.
We determined that mouse testes were able to retain excellent histological details when processed up to 3 hr after euthanasia.
When the immature cells are inserted back into mouse testes, they can develop into mature sperm.
Previous works showed that 12.5 15.5-dpc mouse testes were capable to reorganize into testicular structures with spermatogenesis or seminiferous tubules with teratomas when transplanted under the capsule of adult testes.
In the testes, when PLP/DM20 mRNA is abundant, apoptotic cells are increased in Plp1tg mice, but decreased in PLP-null mice, indicating that PLP modulates apoptosis in many cell types.
When the scientists rounded up the green cells and inserted them into host mouse testes, some of the cells matured into sperm.
To examine whether functional spermatozoa can be obtained when a whole male gonadal tissue (testes, epididymides, and fat) isolated from neonatal mice is grafted underneath adult mouse testes.
To evaluate colonizing ability of human spermatogonial stem cells in mouse testes.
To illustrate the step-by-step protocol followed to assay germ cell transplantation into the seminiferous epithelium of mouse testes.
So what happens to all the ill-fated testes when the deed is done?
