Author
P. Pichierri
Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.
Biology Disciplines
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2018-2024 · peak 4/yrCo-Author Collaboration Network
10 top collaborators · 33 mutual co-author links14 papers
Recent·Most cited
Switch-Like Phosphorylation of WRN Integrates End-Resection with RAD51 Metabolism at Collapsed Replication Forks
V. Palermo, E. Malacaria, M. Semproni, B. Perdichizzi, P. Valenzisi, M. Sanchez, F. Marini, A. Pellicioli, A. Franchitto, P. Pichierri
This study identifies phosphorylation events on WRN that regulate end-resection and RAD51-mediated repair at replication forks.
bioRxiv · Feb 11, 2024Cell Biology
A double-ring of human RAD52 remodels replication forks restricting fork reversal
M. Honda, M. Razzaghi, P. Gaur, E. Malacaria, G. Marozzi, L. Di Biagi, F. A. Aiello, E. A. Paintsil, A. Stanfield, B. J. Deppe, L. Gakhar, N. J. Schnicker, M. A. Spies, P. Pichierri, M. Spies
The paper shows human RAD52 forms a double-ring structure around stalled replication forks, remodeling them via DNA strand exchange to prevent reversal by SMARCAL1.
bioRxiv · Nov 14, 2023 · PreprintBiochemistry
PHOSPHORYLATION-DEPENDENT ASSOCIATION OF WRN WITH RPA IS REQUIRED FOR RECOVERY OF REPLICATION FORKS STALLED AT SECONDARY DNA STRUCTURES
A. Noto, P. Valenzisi, F. Fratini, T. Kulikowicz, J. A. Sommers, F. Di Feo, V. Palermo, M. Semproni, M. Crescenzi, R. M. Brosh, A. Franchitto, P. Pichierri
This study shows that phosphorylation-dependent WRN-RPA interaction is essential for replication fork recovery after stalling at secondary DNA structures, preventing DNA damage and G4 accumulation.
bioRxiv · Aug 8, 2023 · PreprintCell Biology
WRNIP1 prevents transcription-associated genomic instability
P. Valenzisi, V. Marabitti, P. Pichierri, A. Franchitto
This study identifies WRNIP1 as a factor that prevents transcription-associated genomic instability by resolving R-loop conflicts and limiting DNA damage.
bioRxiv · Jun 23, 2023Cell Biology
RAD52 prevents accumulation of Polα-dependent replication gaps at perturbed replication forks
G. Marozzi, L. Di Biagi, E. Malacaria, M. Honda, P. Valenzisi, F. A. Aiello, M. Spies, A. Franchitto, P. Pichierri
This study shows RAD52 prevents Polα-dependent replication gaps by enabling RAD51/Pol repriming at reversed replication forks, which limits DNA damage and improves cell viability during replication stress.
bioRxiv · Apr 12, 2023 · PreprintCell Biology
WRNIP1 PREVENTS G4/R-LOOP-ASSOCIATED GENOMIC INSTABILITY
P. Valenzisi, V. Marabitti, S. Petrai, F. R. Giardinelli, P. Pichierri, A. Franchitto
This study identifies WRNIP1's role in preventing DNA damage caused by G4/R-loop-associated transcription-replication conflicts by stabilizing FANCJ at G4 sites.
bioRxiv · Dec 17, 2022 · PreprintCell Biology
CHK2 regulates MUS81-dependent DSBs in response to replication stress and BRCA2 deficiency
E. Malacaria, C. Figlioli, A. Palma, S. Rinalducci, M. Semproni, A. Franchitto, P. Pichierri
This study identifies CHK2's role in regulating MUS81-dependent DSBs during replication stress and BRCA2 deficiency by phosphorylating MUS81.
bioRxiv · Oct 8, 2022Cell Biology
Phosphorylation Status Of MUS81 Is A Modifier Of Olaparib Sensitivity In BRCA2-Deficient Cells
F. Blandino, E. Malacaria, C. Figlioli, A. Noto, G. M. Pugliese, A. Franchitto, P. Pichierri
This study shows that phosphorylation status of MUS81 affects PARPi sensitivity in BRCA2-deficient cells by modulating MUS81 activity in different phases of the cell cycle.
bioRxiv · Aug 13, 2022Cell Biology
Checkpoint defects require WRNIP1 to counteract R-loop-associated genomic instability
A. Franchitto, V. Marabitti, G. Lillo, E. Malacaria, V. Palermo, P. Pichierri
The paper shows WRNIP1 stabilizes genome integrity by mediating ATM-dependent CHK1 phosphorylation and RAD51 ssDNA association in response to R-loop accumulation.
bioRxiv · Nov 29, 2019 · PreprintCancer Biology
Generation of inducible SMARCAL1 knock-down iPSC to model severe Schimke immune-osseous dysplasia reveals a link between replication stress and altered expression of master differentiation genes
G. M. Pugliese, F. Salaris, V. Palermo, V. Marabitti, N. Morina, A. Rosa, A. Franchitto, P. Pichierri
This study generates SMARCAL1 knock-down iPSCs to model Schimke immune-osseous dysplasia, revealing replication stress and altered gene expression as key factors in disease pathogenesis.
bioRxiv · Feb 10, 2019Cell Biology
Werner helicase control of human papillomavirus 16 E1-E2 DNA replication is regulated by SIRT1 deacetylation
I. M. Morgan, D. Das, M. Bristol, N. W. Smith, X. Wang, P. Pichierri
This paper shows that SIRT1 deacetylates WRN to regulate its interaction with E1-E2 replicating DNA, controlling replication fidelity and quantity in HPV16.
bioRxiv · Oct 23, 2018Microbiology
RAD51 AND MITOTIC FUNCTION OF MUS81 ARE ESSENTIAL FOR RECOVERY FROM LOW-DOSE OF CAMPTOTHECIN IN THE ABSENCE OF THE WRN EXONUCLEASE
P. Pichierri, F. A. Aiello, A. Palma, E. Malacaria, L. Zheng, J. L. Campbell, B. Shen, A. Franchitto
The paper investigates how WRN exonuclease deficiency affects replication fork recovery from camptothecin, showing RAD51 and MUS81 mitotic function are essential to prevent genome instability.
bioRxiv · Aug 25, 2018Cell Biology
Phosphorylation By CK2 Regulates MUS81/EME1 In Mitosis And After Replication Stress
A. Palma, G. M. Pugliese, I. Murfuni, V. Marabitti, E. Malacaria, S. Rinalducci, A. Minoprio, M. Sanchez, F. Mazzei, L. Zolla, A. Franchitto, P. Pichierri
This study shows CK2 phosphorylates MUS81 at Serine 87 in mitosis and under replication stress, promoting its interaction with SLX4 and affecting chromosome stability.
bioRxiv · Mar 7, 2018Cell Biology