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  • E-mailAurelia.Lewis@uib.no
  • Phone+47 55 58 45 21
  • Visitor Address
    Høyteknologisenteret, Bioblokken
    Thormøhlensgt. 55
    5008 Bergen
    Room 
    Lab 2
  • Postal Address
    Postboks 7803
    5020 Bergen

Nuclear lipids in health and diseases


Biomolecular interactions are essential to all biological functions and their alteration can lead to disease. Our lab focuses on protein-phosphoinositide interaction networks by analysing their composition, regulation and functional roles in healthy and pathological states where the phosphoinositide metabolic pathways are known to be altered (particularly in obesity, type 2 diabetes mellitus, cancer). 


Our lab focuses on protein-phospholipid interaction networks and in particular on nuclear protein-polyphosphoinositide complexes. phosphoinositides (PPIn) are lipid signalling molecules regulating a vast array of cellular functions via their interaction with diverse proteins. Most research has focused on their cytoplasmic functions. PPIn are however also present in the nucleus but their functions are still poorly understood.

MOL222 Experimental Molecular Biology II

MOL210 Lipid Biochemistry: From Chemistry to Diseases

http://scholar.google.no/citations?user=OaNcqFEAAAAJ&hl=en

F Mazloumi Gavgani, T Karlsson, IL Tangen, A Papdiné Morovicz, V Smith Arnesen, D C Turcu, C Krakstad, J Guillermet-Guibert and AE Lewis (2019). Nuclear upregulation of PI3K p110β correlates with increased rRNA transcription in endometrial cancer cells. bioRxiv. DOI:10.1101/2019.12.20.884122

RG Jacobsen, F Mazloumi Gavgani, AJ. Edson, M Goris, A Altanchimeg and AE Lewis (2019) Polyphosphoinositides in the nucleus: Roadmap of their effectors and mechanisms of interaction. Advances in Biological Regulation. 72: 7-21.

F Mazloumi Gavgani, V Smith Arnesen, RG Jacobsen, C Krakstad, EA Hoivik, AE Lewis (2018). Class I Phosphoinositide 3-Kinase PIK3CA/p110α and PIK3CB/p110β Isoforms in Endometrial Cancer. Int J Mol Sci. 19(12). pii: E3931. doi: 10.3390/ijms19123931.

T Karlsson, C Krakstad, IL Tangen, EA Hoivik, PM Pollock, HB Salvesen & AE Lewis (2017). Endometrial cancer cells exhibit high expression of p110b and variable response to both p110a and p110b inhibition on PI3K signalling, cell survival and proliferation. Oncotarget. 8:3881-94.

Mjos S, Werner HMJ, Birkeland E, Holst F, Berg A, Halle MK, Tangen IL, Kusonmano K, Mauland KK, Oyan AM, Kalland KH, Lewis AE, Mills GB, Krakstad C, Trovik J, Salvesen HB, Hoivik EA (2017). PIK3CA exon9 mutations associate with reduced survival, and are highly concordant between matching primary tumors and metastases in endometrial cancer. Sci. Reports. 7(1):10240. doi: 10.1038/s41598-017-10717-z.

Jacobsen RM, Gavgani FM, Mellgren G and AE Lewis (2016). DNA Topoisomerase IIa contributes to the early steps of adipogenesis in 3T3-L1 cells. Cellular Signalling. 28:1593-1603.

T Karlsson, A Altanchimeg, O Dobrovolska, DC Turcu and AE Lewis (2016). A polybasic motif in ErbB3-Binding-Protein 1 (EBP1) has key functions in nucleolar localisation and polyphosphoinositide interaction. Biochemical Journal. 473: 2033-47. DOI: 10.1042/BCJ20160274.

AE Lewis, R Aesoy and M Bakke. (2016). Role of EPAC in cAMP-mediated actions in adrenocortical cells. Frontiers in Endocrinology, Neuroendocrine Science. Invited Mini-Review. doi 10.3389/fendo.2016.00063.

CS D’Santos and AE. Lewis (2012). Functional Proteomics: Mapping Lipid-Protein Interactomes. Book Chapter. Integrative Proteomics, Hon-Chiu Eastwood Leung (Ed.), ISBN: 978-953-51-0070-6, InTech, Available from: http://www.intechopen.com/articles/show/title/functional-proteomics-mapp...

AE Lewis, L Sommer, MØ Arntzen, Y Strahm, NA Morrice, N Divecha and CS D’Santos (2011). Identification of nuclear phosphatidylinositol 4,5-bisphosphate-interacting proteins by neomycin extraction. Molecular & Cellular Proteomics. 10(2):M110.003376. IF: 8.8

L Aumo, M Rusten, G Mellgren, M Bakke and AE Lewis (2010). Functional roles of PKA and EPAC2 in cAMP-mediated actions in adrenocortical cells. Endocrinology. 151:2151-61.IF: 4.94.

VV Ardawatia, M Masià-Balagué, BF Krakstad, BB Johansson, KM Kreitzburg, E Spriet, AE Lewis, TE Meigs, AM Aragay (2010). Gα(12) binds to the N-terminal regulatory domain of p120(ctn), and downregulates p120(ctn) tyrosine phosphorylation induced by Src family kinases via a RhoA independent mechanism. Exp. Cell Res. in press 2010 Oct 22. IF: 3.59

EA Hoivik, AE Lewis, L Aumo and M Bakke (2009). Molecular aspects of steroidogenic factor 1 (SF-1). Review. Molecular Cellular Endocrinology.315:27-39. IF: 3.61.

MØ Arntzen, CL Osland, CR Raa, R Kopperud, SO Døskeland, AE Lewis and CS D’Santos (2009). POSTMan (POST-translational Modification analysis), a software application for PTM discovery. Proteomics. 9:1400-6. IF: 4.59.

Hoivik EA, Aumo L, Aesoy R, Lillefosse H, Lewis AE, Perrett RM, Stallings NR, Hanley NA, Bakke M (2008). Deoxyribonucleic Acid methylation controls cell type-specific expression of steroidogenic factor 1. Endocrinology. 149:5599-609. IF: 4.94.

AE Lewis, M Rusten, EA Hoivik, EL Vikse, ML Hansson, AE Wallberg, and M Bakke (2008). Phosphorylation of Steroidogenic Factor 1 Is Mediated by Cyclin-Dependent Kinase 7. Molecular Endocrinology. 22: 91–104. IF: 5.39.

AJ Fikaris,AE Lewis, A Abulaiti, O Tsygankova and JL Meinkoth (2006). Ras triggers ATR activation and apoptosis through sustained mitogenic signaling. J. Biol. Chem. 281:34759-67. IF: 5.52.

AE Lewis, AJ Fikaris, G Prendergast and JL Meinkoth. (2004). TSH and serum regulate thyroid cell proliferation through differential effects on p27 expression and localization. Molecular Endocrinology. 18: 2321-2332. IF: 5.39.

AE Lewis, BCY Wong, MJS Langman and MC Eggo. (2004). Protein kinase C delta is not activated by caspase-3 and its inhibition is sufficient to induce apoptosis in the colon cancer line, COLO 205. Cellular Signalling. 17: 253-262. IF: 4.3.

G Cheng, AE Lewis and JL Meinkoth. (2003). Ras stimulates aberrant cell cycle progression and apoptosis in rat thyroid cells. Molecular Endocrinology. 17: 450-459. IF: 5.39.

AE Lewis, BCY Wong, MJS Langman and MC Eggo. (2003). Protein kinase C inhibition induces DNA fragmentation in Colo 205 cells, which is blocked by cysteine protease inhibition but not mediated through caspase-3. Experimental Cell Research. 289: 1-10. IF: 3.95.

Y Qiu, CE Waters, AE Lewis, MJ Langman and MC Eggo. (2002). Oestrogen-induced apoptosis in colonocytes expressing oestrogen receptor b. Journal of Endocrinology. 174: 369-377. IF: 2.79.

S Dearn, M Rahman, A Lewis, Z Ahmed, MC Eggo and AS Ahmed. (2000). Activation of platelet-activating factor (PAF) receptor stimulates nitric oxide (NO) release via protein kinase C-α in HEC-1B human endometrial epithelial cell line. Molecular Medicine. 6: 37-49. IF: 3.41.

  • 2019. Polyphosphoinositides in the nucleus: Roadmap of their effectors and mechanisms of interaction. 7-21.
  • 2018. Class I Phosphoinositide 3-Kinase PIK3CA/p110α and PIK3CB/p110β Isoforms in Endometrial Cancer.
  • 2017. Why is HAMLET more toxic to dividing cells?
  • 2017. Nuclear phosphoinositide 3- kinase signalling in adipogenesis and the role of DNA topoisomerase IIα as a potential nuclear polyphosphoinositide- binding protein .
  • 2017. Endometrial cancer cells exhibit high expression of p110β and its selective inhibition induces variable responses on PI3K signaling, cell survival and proliferation. OncoTarget. 3881-3894.

More information in national current research information system (CRIStin)

Andrea Papdiné Morovicz, PhD student

Malene Slinning, master student

Shaoor Ahmad, master student

Sindre Hole, master student

Identifying phosphoinositide interacting nuclear proteins to understand their function:

Using a quantitative proteomic methods to enrich for and identify nuclear phosphoinositide effector proteins. Using this method, we have identified nuclear proteins interacting with phosphatidylinositol (4,5) bisphosphate (PtdIns(4,5)P2) (PubMed ID 21048195) and PtdIns(3,4,5)P3, two of the 7 existing PIs.

Current projects include further analysis of these potential interactions (PubMed ID 27118868)

  • Biochemical validation of the interactions
  • Role of PtdIns(4,5)P2 and PtdIns(3,4,5)P3 in the function of these proteins
  • Mechanism of regulation of these interactions
  • Effect of PtdIns(4,5)P2 and PtdIns(3,4,5)P3 on protein structure

 

Mapping changes in protein-phosphoinositide interactomes in pathological states

Our current goal is to map which protein-phosphoinositide networks are remodelled in pathological states where the phosphoinositide metabolic pathways are known to be altered (e.g. obesity, type 2 diabetes mellitus, cancer).

Long term goal: To design small molecules disrupting specific protein-phosphoinositide interactions found to be altered in these diseases.

 

To determine the nuclear role of the PI3K pathway in cancer development

 

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