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Deamplification of supernumerary centrosomes by centrosomal clustering

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Date Issued:
2012
Summary:
Supernumerary centrosomes can arise in a cell through a variety of methods. The presence of supernumerary centrosomes has been observed in nearly all types of cancer and promotes chromosomal instability, with rates of incident increasing as the cancer progresses. An oral squamous cell carcinoma line was treated with hydroxyurea to induce supernumerary centrosomes in the cells. NuMA was then knocked down using shRNA to promote centrosomal clustering and bipolar mitotic division in cells with supernumerary centrosomes. Immunofluorescence with an antibody against SAS 6 accuately stained the centrioles for observation. The cells exhibiting supernumerary centrosomes undergoing bipolar mitotic division were studied to look for a possible pattern in centrosomal clustering where the majority of centrosomes are at one pole with a single centrosome at the other pole. Initial results suggest the presence of such a mechanism, which would describe a previously unknown mechanism for cells to deamplify supernumerary centrosomes by centrosomal clustering.
Title: Deamplification of supernumerary centrosomes by centrosomal clustering.
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Name(s): Thomas, Ezekiel.
Harriet L. Wilkes Honors College
Type of Resource: text
Genre: Thesis
Issuance: multipart monograph
Date Issued: 2012
Publisher: Florida Atlantic University
Physical Form: electronic
electronic resource
Extent: vii, 29 p. : ill. (some col.)
Language(s): English
Summary: Supernumerary centrosomes can arise in a cell through a variety of methods. The presence of supernumerary centrosomes has been observed in nearly all types of cancer and promotes chromosomal instability, with rates of incident increasing as the cancer progresses. An oral squamous cell carcinoma line was treated with hydroxyurea to induce supernumerary centrosomes in the cells. NuMA was then knocked down using shRNA to promote centrosomal clustering and bipolar mitotic division in cells with supernumerary centrosomes. Immunofluorescence with an antibody against SAS 6 accuately stained the centrioles for observation. The cells exhibiting supernumerary centrosomes undergoing bipolar mitotic division were studied to look for a possible pattern in centrosomal clustering where the majority of centrosomes are at one pole with a single centrosome at the other pole. Initial results suggest the presence of such a mechanism, which would describe a previously unknown mechanism for cells to deamplify supernumerary centrosomes by centrosomal clustering.
Identifier: 820002414 (oclc), 3359328 (digitool), FADT3359328 (IID), fau:1456 (fedora)
Note(s): by Ezekiel Thomas.
Thesis (B.A.)--Florida Atlantic University, Honors College, 2012.
Includes bibliography.
Mode of access: World Wide Web.
System requirements: Adobe Reader.
Subject(s): Centrosomes
Cell division
Cellular signal transduction
Cancer -- Genetic aspects
Held by: FBoU FAUER
Persistent Link to This Record: http://purl.flvc.org/FAU/3359328
Use and Reproduction: Copyright © is held by the author, with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder.
Host Institution: FAU

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