reproductive system
• seminiferous tubules show a mosaic pattern in which about half of the tubules are largely devoid of germ cells, apart from a ring of spermatogonia adjacent to the basal membrane, and the remaining tubules show maturation arrest at the pachytene stage of spermatogenesis
|
small testis
(
J:269011
)
|
• seminiferous tubules show a mosaic pattern in which about half of the tubules are largely devoid of germ cells, apart from a ring of spermatogonia adjacent to the basal membrane, and the remaining tubules show maturation arrest at the pachytene stage of spermatogenesis
|
endocrine/exocrine glands
small testis
(
J:269011
)
|
homeostasis/metabolism
• MEFs show a defect in stalled fork protection
• however, homology-directed repair is normal
|
cellular
• seminiferous tubules show a mosaic pattern in which about half of the tubules are largely devoid of germ cells, apart from a ring of spermatogonia adjacent to the basal membrane, and the remaining tubules show maturation arrest at the pachytene stage of spermatogenesis
|
• MEFs are hypersensitive to the DNA inter-strand crosslinking agent mitomycin C and the PARP inhibitor olaparib, indicating hypersensitivity to genotoxic agents
• MEFs accumulate chromosomal rearrangements in response to genotoxic stress induced by mitomycin C
• however, MEFs show normal response to ionizing radiation
|
• MEFs show a defect in stalled fork protection
• however, homology-directed repair is normal
|
neoplasm