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About

I am a physicist with a deep passion for understanding complex (biological) systems. After my PhD at the University PARIS XI, I began as a Post-Doc at the Erasmus MC, Rotterdam by building simulation frameworks for molecular biologists. After a few years, I somehow became invested in designing and actually running experiments myself, using advanced microscopes to explore live cells and tissue explants.

My expertise in quantitative imaging and a growing interest in what happens once DNA repair is finished, gave me the opportunity to also work at the IPBS in Toulouse and then at the INMG – PGNM in Lyon where I expanded my research to include muscle cells, neuromuscular junctions, and rare genetic conditions like spinal muscular atrophy. Most of my work now revolves around:

  • DNA repair and transcription restart
  • Nucleolar reorganization during and after genotoxic stress
  • Super-resolution microscopy of the cell nucleus.

With more than two decades of experience in quantitative microscopy, I am now also the scientific head of the CIQLE imaging facility, ensuring the scientific community has access to state-of-the-art equipment.

Beyond my research activities, I enjoy sharing knowledge through mentoring, equipment training and collaborating to hands-on outreach events like the yearly “Fête de la Science” where, as part of our lab’s booth – Some Sunshine on my Skin – I will be trading my microscope for a telescope to show live observations of our sun’s chromosphere.

Publications

2024
Belotti E, Lacoste N, Iftikhar A, Simonet T, Papin C, Osseni A, Streichenberger N, Mari PO, Girard E..., H2A.Z is involved in premature aging and DSB repair initiation in muscle fibers., Nucleic Acids Res 2024 Apr; 52(6): 3031-3049.
2024
Sutcu HH, Rassinoux P, Donnio LM, Neuillet D, Vianna F, Gabillot O, Mari PO, Baldeyron C, Giglia-Mar..., Decline of DNA damage response along with myogenic differentiation., Life Sci Alliance 2024 Feb; 7(2): .
2023
Musawi S, Donnio LM, Zhao Z, Magnani C, Rassinoux P, Binda O, Huang J, Jacquier A, Coudert L, Lomont..., Nucleolar reorganization after cellular stress is orchestrated by SMN shuttling between nuclear compartments, Nat Commun 2023 Nov; 14(1): 7384.
2022
Donnio LM, Cerutti E, Magnani C, Neuillet D, Mari PO, Giglia-Mari G, XAB2 dynamics during DNA damage-dependent transcription inhibition, Elife 2022 Jul; 11(): .
2022
Taupelet F, Donnio LM, Magnani C, Mari PO, Giglia-Mari G, A stable XPG protein is required for proper ribosome biogenesis: Insights on the phenotype of combinate Xeroderma Pigmentosum/Cockayne Syndrome patients, PLoS One 2022 ; 17(7): e0271246.
2019
Donnio LM, Miquel C, Vermeulen W, Giglia-Mari G, Mari PO, Cell-type specific concentration regulation of the basal transcription factor TFIIH in XPBy/y mice model, Cancer Cell Int 2019 ; 19(): 237.
2019
Donnio LM, Lagarou A, Sueur G, Mari PO, Giglia-Mari G, CSB-Dependent Cyclin-Dependent Kinase 9 Degradation and RNA Polymerase II Phosphorylation during Transcription-Coupled Repair., Mol Cell Biol 2019 Mar; 39(6): .
2018
Gervais V, Muller I, Mari PO, Mourcet A, Movellan KT, Ramos P, Marcoux J, Guillet V, Javaid S, Burle..., Small molecule-based targeting of TTD-A dimerization to control TFIIH transcriptional activity represents a potential strategy for anticancer therapy., J Biol Chem 2018 Sep; 293(39): 14974-14988.
2018
Daniel L, Cerutti E, Donnio LM, Nonnekens J, Carrat C, Zahova S, Mari PO, Giglia-Mari G, Mechanistic insights in transcription-coupled nucleotide excision repair of ribosomal DNA., Proc Natl Acad Sci U S A 2018 Jul; 115(29): E6770-E6779.
2016
Ranes M, Boeing S, Wang Y, Wienholz F, Menoni H, Walker J, Encheva V, Chakravarty P, Mari PO, Stewar..., A ubiquitylation site in Cockayne syndrome B required for repair of oxidative DNA damage, but not for transcription-coupled nucleotide excision repair., Nucleic Acids Res 2016 Jun; 44(11): 5246-55.
2013
Mourgues S, Gautier V, Lagarou A, Bordier C, Mourcet A, Slingerland J, Kaddoum L, Coin F, Vermeulen ..., ELL, a novel TFIIH partner, is involved in transcription restart after DNA repair., Proc Natl Acad Sci U S A 2013 Oct; 110(44): 17927-32.
2013
Nonnekens J, Cabantous S, Slingerland J, Mari PO, Giglia-Mari G, In vivo interactions of TTDA mutant proteins within TFIIH., J Cell Sci 2013 Aug; 126(Pt 15): 3278-83.
2013
Theil AF, Nonnekens J, Steurer B, Mari PO, de Wit J, Lemaitre C, Marteijn JA, Raams A, Maas A, Verme..., Disruption of TTDA results in complete nucleotide excision repair deficiency and embryonic lethality., PLoS Genet 2013 Apr; 9(4): e1003431.
2013
Oksenych V, Zhovmer A, Ziani S, Mari PO, Eberova J, Nardo T, Stefanini M, Giglia-Mari G, Egly JM, Co..., Histone methyltransferase DOT1L drives recovery of gene expression after a genotoxic attack., PLoS Genet 2013 ; 9(7): e1003611.
2012
Kleppa L, Mari PO, Larsen E, Lien GF, Godon C, Theil AF, Nesse GJ, Wiksen H, Vermeulen W, Giglia-Mar..., Kinetics of endogenous mouse FEN1 in base excision repair., Nucleic Acids Res 2012 Oct; 40(18): 9044-59.
2012
Baradaran-Heravi A, Raams A, Lubieniecka J, Cho KS, DeHaai KA, Basiratnia M, Mari PO, Xue Y, Rauth M..., SMARCAL1 deficiency predisposes to non-Hodgkin lymphoma and hypersensitivity to genotoxic agents in vivo., Am J Med Genet A 2012 Sep; 158A(9): 2204-13.
2012
Godon C, Mourgues S, Nonnekens J, Mourcet A, Coin F, Vermeulen W, Mari PO, Giglia-Mari G, Generation of DNA single-strand displacement by compromised nucleotide excision repair., EMBO J 2012 Aug; 31(17): 3550-63.
2010
Mari PO, Verbiest V, Sabbioneda S, Gourdin AM, Wijgers N, Dinant C, Lehmann AR, Vermeulen W, Giglia-..., Influence of the live cell DNA marker DRAQ5 on chromatin-associated processes., DNA Repair (Amst) 2010 Jul; 9(7): 848-55.
2010
Anindya R, Mari PO, Kristensen U, Kool H, Giglia-Mari G, Mullenders LH, Fousteri M, Vermeulen W, Egl..., A ubiquitin-binding domain in Cockayne syndrome B required for transcription-coupled nucleotide excision repair., Mol Cell 2010 Jun; 38(5): 637-48.
2009
Giglia-Mari G, Theil AF, Mari PO, Mourgues S, Nonnekens J, Andrieux LO, de Wit J, Miquel C, Wijgers ..., Differentiation driven changes in the dynamic organization of Basal transcription initiation., PLoS Biol 2009 Oct; 7(10): e1000220.
2009
van der Burg M, Ijspeert H, Verkaik NS, Turul T, Wiegant WW, Morotomi-Yano K, Mari PO, Tezcan I, Che..., A DNA-PKcs mutation in a radiosensitive T-B- SCID patient inhibits Artemis activation and nonhomologous end-joining., J Clin Invest 2009 Jan; 119(1): 91-8.
2008
Alekseev S, Luijsterburg MS, Pines A, Geverts B, Mari PO, Giglia-Mari G, Lans H, Houtsmuller AB, Mul..., Cellular concentrations of DDB2 regulate dynamic binding of DDB1 at UV-induced DNA damage., Mol Cell Biol 2008 Dec; 28(24): 7402-13.
2007
Uematsu N, Weterings E, Yano K, Morotomi-Yano K, Jakob B, Taucher-Scholz G, Mari PO, van Gent DC, Ch..., Autophosphorylation of DNA-PKCS regulates its dynamics at DNA double-strand breaks., J Cell Biol 2007 Apr; 177(2): 219-29.
2006
Mari PO, Florea BI, Persengiev SP, Verkaik NS, Brüggenwirth HT, Modesti M, Giglia-Mari G, Bezstaros..., Dynamic assembly of end-joining complexes requires interaction between Ku70/80 and XRCC4., Proc Natl Acad Sci U S A 2006 Dec; 103(49): 18597-602.
2006
Giglia-Mari G, Miquel C, Theil AF, Mari PO, Hoogstraten D, Ng JM, Dinant C, Hoeijmakers JH, Vermeule..., Dynamic interaction of TTDA with TFIIH is stabilized by nucleotide excision repair in living cells., PLoS Biol 2006 Jun; 4(6): e156.