Cep57 and Cep57L1 maintain centriole engagement in interphase to ensure centriole duplication cycle.
Cep57 and Cep57L1 maintain centriole engagement in interphase to ensure centriole duplication cycle.
复制标题
Cep57和Cep57L1在间期维持中心粒接合,确保中心粒复制周期。
DOI:
10.1083/jcb.202005153
复制
发表时间:
2021-03-01
期刊:
影响因子:
--
通讯作者:
Kitagawa D
中科院分区:
文献类型:
--
作者:
Ito KK;Watanabe K;Ishida H;Matsuhashi K;Chinen T;Hata S;Kitagawa D
Ito et al. revealed that centrosomal proteins Cep57 and Cep57L1 cooperatively maintain centriole engagement during interphase in human cells. Codepletion of Cep57 and Cep57L1 induces precocious centriole disengagement in interphase, which results in centriole reduplication, centriole amplification, and chromosome segregation errors. Centrioles duplicate in interphase only once per cell cycle. Newly formed centrioles remain associated with their mother centrioles. The two centrioles disengage at the end of mitosis, which licenses centriole duplication in the next cell cycle. Therefore, timely centriole disengagement is critical for the proper centriole duplication cycle. However, the mechanisms underlying centriole engagement during interphase are poorly understood. Here, we show that Cep57 and Cep57L1 cooperatively maintain centriole engagement during interphase. Codepletion of Cep57 and Cep57L1 induces precocious centriole disengagement in interphase without compromising cell cycle progression. The disengaged daughter centrioles convert into centrosomes during interphase in a Plk1-dependent manner. Furthermore, the centrioles reduplicate and the centriole number increases, which results in chromosome segregation errors. Overall, these findings demonstrate that the maintenance of centriole engagement by Cep57 and Cep57L1 during interphase is crucial for the tight control of centriole copy number and thus for proper chromosome segregation.
登录
查看更多内容
影响因子:
9.2
作者:
Loncarek, Jadranka;Hergert, Polla;Khodjakov, Alexey
通讯作者:
Khodjakov, Alexey
影响因子:
16.6
作者:
Petry S
通讯作者:
Petry S
影响因子:
4.1
作者:
Momotani, Ko;Khromov, Alexander S.;Somlyo, Avril V.
通讯作者:
Somlyo, Avril V.
影响因子:
21.3
作者:
Lawo, Steffen;Hasegan, Monica;Pelletier, Laurence
通讯作者:
Pelletier, Laurence
影响因子:
16.6
作者:
Kim, Tae-Sung;Zhang, Liang;Lee, Kyung S.
通讯作者:
Lee, Kyung S.