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Alterations in Gene Expression During Radiation-Induced Mitotic Catastrophe in He La Hep2 Cells
Umeå universitet, Medicinska fakulteten, Institutionen för klinisk mikrobiologi, Klinisk immunologi.
Umeå universitet, Medicinska fakulteten, Institutionen för klinisk mikrobiologi, Klinisk immunologi.
Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik.
Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Diagnostisk radiologi.
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2014 (Engelska)Ingår i: Anticancer Research, ISSN 0250-7005, E-ISSN 1791-7530, Vol. 34, nr 8, s. 3875-3880Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Aim: To explore kinetic changes in the gene expression profile during radiation-induced mitotic catastrophes. Materials and Methods: Gene expression changes were measured in HPV-infected HeLa Hep2 tumor cells following exposure to 5 Gy of ionizing radiation (Co-60). Signaling pathways were explored and correlated to the biological responses linked to mitotic catastrophe. Results: Following irradiation a transient G(2)-arrest was induced. Anaphase bridge formation and centrosome hyperamplification was observed. These phenotypical changes correlated well with the observed gene expression changes. Genes with altered expression were found to be involved in mitotic processes as well as G(2)- and spindle assembly checkpoints. Also centrosome-associated genes displayed an increased expression. Conclusion: This study elucidates specific characteristics in the altered gene expression pattern induced by irradiation, which can be correlated to the events of mitotic catastrophe in HeLa Hep2 cells. Therapeutic strategies modulating these alterations might potentiate future therapy and enhance tumor cell killing.

Ort, förlag, år, upplaga, sidor
INT INST ANTICANCER RESEARCH , 2014. Vol. 34, nr 8, s. 3875-3880
Nyckelord [en]
Radiation, cell cycle checkpoint, cell death, mitotic catastrophe, gene expression
Nationell ämneskategori
Immunologi inom det medicinska området
Identifikatorer
URN: urn:nbn:se:umu:diva-92927ISI: 000339773400002OAI: oai:DiVA.org:umu-92927DiVA, id: diva2:748042
Tillgänglig från: 2014-09-18 Skapad: 2014-09-09 Senast uppdaterad: 2018-06-07Bibliografiskt granskad

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Lindgren, TheresStigbrand, TorgnyJohansson, LennartRiklund, KatrineEriksson, David

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Lindgren, TheresStigbrand, TorgnyJohansson, LennartRiklund, KatrineEriksson, David
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Klinisk immunologiRadiofysikDiagnostisk radiologi
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Immunologi inom det medicinska området

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