Endocrinology and metabolism (Seoul, Korea) · 2014
Determination of Mother Centriole Maturation in CPAP-Depleted Cells Using the Ninein Antibody.
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Lee Miseon, Rhee Kunsoo
Аннотация
BACKGROUND: Mutations in centrosomal protein genes have been identified in a number of genetic diseases in brain development, including microcephaly. Centrosomal P4.1-associated protein (CPAP) is one of the causal genes implicated in primary microcephaly. We previously proposed that CPAP is essential for mother centriole maturation during mitosis.
METHODS: We immunostained CPAP-depleted cells using the ninein antibody, which selectively detects subdistal appendages in mature mother centrioles.
RESULTS: Ninein signals were significantly impaired in CPAP-depleted cells.
CONCLUSION: The results suggest that CPAP is required for mother centriole maturation in mammalian cells. The selective absence of centriolar appendages in young mother centrioles may be responsible for asymmetric spindle pole formation in CPAP-depleted cells.
METHODS: We immunostained CPAP-depleted cells using the ninein antibody, which selectively detects subdistal appendages in mature mother centrioles.
RESULTS: Ninein signals were significantly impaired in CPAP-depleted cells.
CONCLUSION: The results suggest that CPAP is required for mother centriole maturation in mammalian cells. The selective absence of centriolar appendages in young mother centrioles may be responsible for asymmetric spindle pole formation in CPAP-depleted cells.