Aurora B tension sensing mechanisms in the kinetochore ensure accurate chromosome segregation

SL McVey, JK Cosby, NJ Nannas - International Journal of Molecular …, 2021 - mdpi.com
The accurate segregation of chromosomes is essential for the survival of organisms and
cells. Mistakes can lead to aneuploidy, tumorigenesis and congenital birth defects. The …

Randomness in microtubule dynamics: an error that requires correction or an inherent plasticity required for normal cellular function?

Y Ilan - Cell Biology International, 2019 - Wiley Online Library
Microtubules (MTs) play roles in regulating the mechanical structure and dynamics of cells.
While MTs appear to be highly ordered structures, recent data suggest some randomness in …

Optogenetic control of PRC1 reveals its role in chromosome alignment on the spindle by overlap length-dependent forces

M Jagrić, P Risteski, J Martinčić, A Milas, IM Tolić - Elife, 2021 - elifesciences.org
During metaphase, chromosome position at the spindle equator is regulated by the forces
exerted by kinetochore microtubules and polar ejection forces. However, the role of forces …

[HTML][HTML] Kinetochore life histories reveal an Aurora-B-dependent error correction mechanism in anaphase

O Sen, JU Harrison, NJ Burroughs, AD McAinsh - Developmental cell, 2021 - cell.com
Chromosome mis-segregation during mitosis leads to aneuploidy, which is a hallmark of
cancer and linked to cancer genome evolution. Errors can manifest as" lagging …

Complete microtubule–kinetochore occupancy favours the segregation of merotelic attachments

D Dudka, A Noatynska, CA Smith, N Liaudet… - Nature …, 2018 - nature.com
Kinetochores are multi-protein complexes that power chromosome movements by tracking
microtubules plus-ends in the mitotic spindle. Human kinetochores bind up to 20 …

Mechanisms of chromosome biorientation and bipolar spindle assembly analyzed by computational modeling

C Edelmaier, AR Lamson, ZR Gergely, S Ansari… - Elife, 2020 - elifesciences.org
The essential functions required for mitotic spindle assembly and chromosome biorientation
and segregation are not fully understood, despite extensive study. To illuminate the …

Length-dependent poleward flux of sister kinetochore fibers promotes chromosome alignment

P Risteski, D Božan, M Jagrić, A Bosilj, N Pavin… - Cell reports, 2022 - cell.com
Chromosome alignment at the spindle equator promotes proper chromosome segregation
and depends on pulling forces exerted at kinetochore fiber tips together with polar ejection …

Evidence for a HURP/EB free mixed-nucleotide zone in kinetochore-microtubules

C Castrogiovanni, AV Inchingolo, JU Harrison… - Nature …, 2022 - nature.com
Current models infer that the microtubule-based mitotic spindle is built from GDP-tubulin with
small GTP caps at microtubule plus-ends, including those that attach to kinetochores …

Mechanical torque promotes bipolarity of the mitotic spindle through multi-centrosomal clustering

CE Miles, J Zhu, A Mogilner - Bulletin of Mathematical Biology, 2022 - Springer
Intracellular forces shape cellular organization and function. One example is the mitotic
spindle, a cellular machine consisting of multiple chromosomes and centrosomes which …

Centromere mechanical maturation during mammalian cell mitosis

LA Harasymiw, D Tank, M McClellan… - Nature …, 2019 - nature.com
During mitosis, tension develops across the centromere as a result of spindle-based forces.
Metaphase tension may be critical in preventing mitotic chromosome segregation errors …