Publications de Peter Martin Beard

Growth of osteosarcoma cells in a three-dimensional bone-like matrix alters their susceptibility to adeno-associated virus

Peter Martin Beard, Martha Luise Müller, Sangeeta Dey, Katarina Damjanovic

Osteosarcoma cells U2OS are partially susceptible to adeno-associated virus (AAV)-2 infection, allowing efficient synthesis of Rep proteins and, in a low percentage of cells, capsid production. It is not clear if this partial susceptibility to infection is ...

Soc General Microbiology2014

Hedgehog pathway regulators influence cervical cancer cell proliferation, survival and migration

Peter Martin Beard, Ivana Samarzija

Human papillomavirus (HPV) infection is considered to be a primary hit that causes cervical cancer. However, infection with this agent, although needed, is not sufficient for a cancer to develop. Additional cellular changes are required to complement the a ...

Academic Press Inc Elsevier Science2012

Mitotic Catastrophe Occurs in the Absence of Apoptosis in p53-Null Cells with a Defective G1 Checkpoint

Peter Martin Beard, Michail Fragkos

Cell death occurring during mitosis, or mitotic catastrophe, often takes place in conjunction with apoptosis, but the conditions in which mitotic catastrophe may exhibit features of programmed cell death are still unclear. In the work presented here, we st ...

Public Library of Science2011

Parvoviruses

Peter Martin Beard

John Wiley & Sons2011

Adeno-Associated Virus Activates an Innate Immune Response in Normal Human Cells but Not in Osteosarcoma Cells

Peter Martin Beard

Adeno-associated virus (AAV) is a small, DNA-containing dependovirus with promising potential as a gene delivery vehicle. Given the variety of applications of AAV-based vectors in the treatment of genetic disorders, numerous studies have focused on the imm ...

American Society for Microbiology2011

H2AX is required for cell cycle arrest via the p53/p21 pathway

Peter Martin Beard, Michail Fragkos

Phosphorylation of H2AX (gamma H2AX) is an early sign of DNA damage induced by replication stalling. However, the role of H2AX in the repair of this type of DNA damage is still unclear. In this study, we used an inactivated adeno-associated virus (AAV) to ...

2009

Recombinant Adeno-Associated viral vectors are deficient in provoking a DNA damage response

Peter Martin Beard, Michail Fragkos

Adeno-associated virus type 2 (AAV2) provokes a DNA damage response that mimics a stalled replication fork. We have previously shown that this response is dependent on ataxia telangiectasia-mutated and Rad3- related kinase and involves recruitment of DNA r ...

American Society for Microbiology2008