Dr. Tang, Tang K. 's publons link picture

Dr. Tang, Tang K.

Vice President, Academia Sinica
Distinguished Research Fellow
Academician, Academia Sinica
  • 02-27899156(lab) (Lab) (Room No: 301)
  • 02-26523901(o)
  • 02-27829143 (Fax)

  • Centrosome and Cilia Biogenesis
  • Mitosis
  • Neural Stem Cell Division

Education and Positions:
  • Ph.D. Human Genetics, Yale University

Highlight Detail

Human Microcephaly Protein RTTN Is Required for Proper Mitotic Progression and Correct Spindle Position

Dr. Tang, Tang K.
Cells, Jun 09, 2021



Autosomal recessive primary microcephaly (MCPH) is a complex neurodevelopmental disorder characterized by a small brain size with mild to moderate intellectual disability. We previously demonstrated that human microcephaly RTTN played an important role in regulating centriole duplication during interphase, but the role of RTTN in mitosis is not fully understood. Here, we show that RTTN is required for normal mitotic progression and correct spindle position. The depletion of RTTN induces the dispersion of the pericentriolar protein γ-tubulin and multiple mitotic abnormalities, including monopolar, abnormal bipolar, and multipolar spindles. Importantly, the loss of RTTN altered NuMA/p150Glued congression to the spindle poles, perturbed NuMA cortical localization, and reduced the number and the length of astral microtubules. Together, our results provide a new insight into how RTTN functions in mitosis.