open access

Vol 83, No 5 (2012)
ARTICLES
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Molecular basis of gynecological oncology – TopBP1 protein and its participation in the transcription process

Magdalena Bryś, Andrzej Bieńkiewicz, Katarzyna Wójcik-Krowiranda, Ewa Forma
Ginekol Pol 2012;83(5).

open access

Vol 83, No 5 (2012)
ARTICLES

Abstract

Breast and ovarian cancer are among the most common malignancies of women in the world. About 5 – 10% of the cases are considered familial. Germline mutations in the BRCA1 and BRCA2 genes are strong predictors of breast and/or ovarian cancer development. However, currently known susceptibility genes including BRCA1, BRCA2, ATM, Chk2, PALB2, and BRIP1 explain less than 25% of familial breast and/ovarian cancers. Other genes, such as TopBP1 are also likely to be involved in hereditary predisposition to breast and/or ovarian cancer. TopBP1 protein displays structural and functional similarities with BRCA1, and these two proteins have been suggested to function partially in the same cellular processes. TopBP1 protein is involved in DNA repair and cell cycle checkpoint control. Moreover, TopBP1 interacts with transcription factors, such as E2F1, p53, Miz-1, HPV16 E2, and regulates their activity.

Abstract

Breast and ovarian cancer are among the most common malignancies of women in the world. About 5 – 10% of the cases are considered familial. Germline mutations in the BRCA1 and BRCA2 genes are strong predictors of breast and/or ovarian cancer development. However, currently known susceptibility genes including BRCA1, BRCA2, ATM, Chk2, PALB2, and BRIP1 explain less than 25% of familial breast and/ovarian cancers. Other genes, such as TopBP1 are also likely to be involved in hereditary predisposition to breast and/or ovarian cancer. TopBP1 protein displays structural and functional similarities with BRCA1, and these two proteins have been suggested to function partially in the same cellular processes. TopBP1 protein is involved in DNA repair and cell cycle checkpoint control. Moreover, TopBP1 interacts with transcription factors, such as E2F1, p53, Miz-1, HPV16 E2, and regulates their activity.
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Keywords

E2F1, p53, breast cancer, ovarian cancer

About this article
Title

Molecular basis of gynecological oncology – TopBP1 protein and its participation in the transcription process

Journal

Ginekologia Polska

Issue

Vol 83, No 5 (2012)

Bibliographic record

Ginekol Pol 2012;83(5).

Keywords

E2F1
p53
breast cancer
ovarian cancer

Authors

Magdalena Bryś
Andrzej Bieńkiewicz
Katarzyna Wójcik-Krowiranda
Ewa Forma

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