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Centrosome Duplication

Centrosome Duplication

The primary microtubule organizing center (MTOC) in animal cells is the centrosome. A centrosome has two cylindrical centrioles at its core. Each centriole consists of nine sets of three microtubules held together by proteins. The centrioles are positioned at right angles to each other and surrounded by a shapeless protein cloud called the pericentriolar matrix, or pericentriolar material (PCM).
To ensure that each daughter cell receives a centrosome after cell division, centrosome duplication...

Centrosome Duplication

Centrosome Duplication

The primary microtubule organizing center (MTOC) in animal cells is the centrosome. A centrosome has two cylindrical centrioles at its core. Each centriole consists of nine sets of three microtubules held together by proteins. The centrioles are positioned at right angles to each other and surrounded by a shapeless protein cloud called the pericentriolar matrix, or pericentriolar material (PCM).
To ensure that each daughter cell receives a centrosome after cell division, centrosome duplication...

Centrioles and Centrosomes

Centrioles and Centrosomes

Most animal cells comprise a pair of centrioles together called a centrosome. The cell duplicates its centrosome and contains two centrosomes side-by-side, which begin to move apart during the prophase. As the centrosomes migrate to two different sides of the cell, microtubules start extending from each centrosome toward the other end. The mitotic spindle is composed of the centrosomes and their emerging microtubules.
Near the end of the prophase, also called late prophase or "prometaphase,"...

mTOR Signaling and Cancer Progression

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The mTOR pathway or the...

mTOR Signaling and Cancer Progression

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Cancers Originate from Somatic Mutations in a Single Cell

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Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...

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Related Experiment Video

Updated: May 24, 2026

Live Cell Imaging to Assess the Dynamics of Metaphase Timing and Cell Fate Following Mitotic Spindle Perturbations

Live Cell Imaging to Assess the Dynamics of Metaphase Timing and Cell Fate Following Mitotic Spindle Perturbations

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Centrosome amplification in tumorigenesis.

Simon J Anderhub¹, Alwin Krämer, Bettina Maier

¹Clinical Cooperation Unit Molecular Hematology/Oncology, German Cancer Research Center, University of Heidelberg, Germany.

|February 21, 2012

Summary

Centrosome amplification is a hallmark of cancer, potentially causing aneuploidy and malignant transformation. This review explores centrosome biology, amplification, and its role in tumor formation.

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Last Updated: May 24, 2026

Live Cell Imaging to Assess the Dynamics of Metaphase Timing and Cell Fate Following Mitotic Spindle Perturbations

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Published on: September 20, 2019

Quantitative Immunofluorescence Assay to Measure the Variation in Protein Levels at Centrosomes

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Published on: December 20, 2014

Immunofluorescence Analysis of Endogenous and Exogenous Centromere-kinetochore Proteins

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Published on: March 3, 2016

Area of Science:

Cell Biology
Cancer Biology
Genetics

Background:

The centrosome, a key organelle in cell division, has been studied for over a century in relation to cancer.
Centrosome amplification is now recognized as a common feature across most solid and hematological cancers.
Early hypotheses linked amplified centrosomes and abnormal mitosis to cancer causation.

Purpose of the Study:

To review fundamental aspects of centrosome biology.
To elucidate the mechanisms behind centrosome amplification.
To discuss the role of centrosome amplification in driving aneuploidy and malignant cell transformation.

Main Methods:

This review synthesizes existing literature on centrosome biology and cancer.
It examines the emergence and consequences of centrosome amplification.
It discusses findings from model systems investigating centrosome amplification in tumor formation.

Main Results:

Centrosome amplification is a prevalent characteristic of cancer cells.
Amplified centrosomes can lead to aneuploidy, a state of abnormal chromosome number.
This aneuploidy is a significant factor in the malignant transformation of cells.

Conclusions:

Centrosome amplification is a critical "hallmark" of cancer.
Understanding centrosome biology is crucial for cancer research.
Further investigation into centrosome amplification's role in tumorigenesis is warranted.