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  1. Article: Rarγ -Foxa1 signaling promotes luminal identity in prostate progenitors and is disrupted in prostate cancer.

    Felice, Dario De / Alaimo, Alessandro / Bressan, Davide / Genovesi, Sacha / Marmocchi, Elisa / Annesi, Nicole / Beccaceci, Giulia / Dalfovo, Davide / Cutrupi, Federico / Foletto, Veronica / Lorenzoni, Marco / Gandolfi, Francesco / Kannan, Srinivasaraghavan / Verma, Chandra S / Vasciaveo, Alessandro / Shen, Michael M / Romanel, Alessandro / Chiacchiera, Fulvio / Cambuli, Francesco /
    Lunardi, Andrea

    bioRxiv : the preprint server for biology

    2024  

    Abstract: Retinoic acid (RA) signaling is a master regulator of vertebrate development with crucial roles in directing body axis orientation and tissue differentiation, including in the reproductive system. However, a mechanistic understanding of how RA signaling ... ...

    Abstract Retinoic acid (RA) signaling is a master regulator of vertebrate development with crucial roles in directing body axis orientation and tissue differentiation, including in the reproductive system. However, a mechanistic understanding of how RA signaling promotes cell lineage identity in different tissues is often missing. Here, leveraging prostate organoid technology, we demonstrated that RA signaling orchestrates the commitment of adult mouse prostate progenitors to glandular identity, epithelial barrier integrity, and ultimately, proper specification of the prostatic lumen. Mechanistically, RA-dependent RARγ activation promotes the expression of the pioneer factor Foxa1, which synergizes with the androgen pathway for proper luminal expansion, cytoarchitecture and function.
    Language English
    Publishing date 2024-03-08
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2024.03.06.583256
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Sleep fragmentation affects glymphatic system through the different expression of AQP4 in wild type and 5xFAD mouse models.

    Vasciaveo, Valeria / Iadarola, Antonella / Casile, Antonino / Dante, Davide / Morello, Giulia / Minotta, Lorenzo / Tamagno, Elena / Cicolin, Alessandro / Guglielmotto, Michela

    Acta neuropathologica communications

    2023  Volume 11, Issue 1, Page(s) 16

    Abstract: Alzheimer's disease (AD) is characterized by genetic and multifactorial risk factors. Many studies correlate AD to sleep disorders. In this study, we performed and validated a mouse model of AD and sleep fragmentation, which properly mimics a real ... ...

    Abstract Alzheimer's disease (AD) is characterized by genetic and multifactorial risk factors. Many studies correlate AD to sleep disorders. In this study, we performed and validated a mouse model of AD and sleep fragmentation, which properly mimics a real condition of intermittent awakening. We noticed that sleep fragmentation induces a general acceleration of AD progression in 5xFAD mice, while in wild type mice it affects cognitive behaviors in particular learning and memory. Both these events may be correlated to aquaporin-4 (AQP4) modulation, a crucial player of the glymphatic system activity. In particular, sleep fragmentation differentially affects aquaporin-4 channel (AQP4) expression according to the stage of the disease, with an up-regulation in younger animals, while such change cannot be detected in older ones. Moreover, in wild type mice sleep fragmentation affects cognitive behaviors, in particular learning and memory, by compromising the glymphatic system through the decrease of AQP4. Nevertheless, an in-depth study is needed to better understand the mechanism by which AQP4 is modulated and whether it could be considered a risk factor for the disease development in wild type mice. If our hypotheses are going to be confirmed, AQP4 modulation may represent the convergence point between AD and sleep disorder pathogenic mechanisms.
    MeSH term(s) Animals ; Mice ; Alzheimer Disease/pathology ; Amyloid beta-Peptides/metabolism ; Aquaporin 4/genetics ; Aquaporin 4/metabolism ; Brain/pathology ; Disease Models, Animal ; Glymphatic System/pathology ; Mice, Transgenic ; Sleep Deprivation/metabolism ; Sleep Wake Disorders/genetics
    Chemical Substances Amyloid beta-Peptides ; Aquaporin 4 ; Aqp4 protein, mouse
    Language English
    Publishing date 2023-01-18
    Publishing country England
    Document type Journal Article
    ZDB-ID 2715589-4
    ISSN 2051-5960 ; 2051-5960
    ISSN (online) 2051-5960
    ISSN 2051-5960
    DOI 10.1186/s40478-022-01498-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Subtype-selective prenylated isoflavonoids disrupt regulatory drivers of MYCN-amplified cancers.

    Stokes, Michael E / Vasciaveo, Alessandro / Small, Jonnell Candice / Zask, Arie / Reznik, Eduard / Smith, Nailah / Wang, Qian / Daniels, Jacob / Forouhar, Farhad / Rajbhandari, Presha / Califano, Andrea / Stockwell, Brent R

    Cell chemical biology

    2023  Volume 31, Issue 4, Page(s) 805–819.e9

    Abstract: Transcription factors have proven difficult to target with small molecules because they lack pockets necessary for potent binding. Disruption of protein expression can suppress targets and enable therapeutic intervention. To this end, we developed a drug ...

    Abstract Transcription factors have proven difficult to target with small molecules because they lack pockets necessary for potent binding. Disruption of protein expression can suppress targets and enable therapeutic intervention. To this end, we developed a drug discovery workflow that incorporates cell-line-selective screening and high-throughput expression profiling followed by regulatory network analysis to identify compounds that suppress regulatory drivers of disease. Applying this approach to neuroblastoma (NBL), we screened bioactive molecules in cell lines representing its MYC-dependent (MYCNA) and mesenchymal (MES) subtypes to identify selective compounds, followed by PLATESeq profiling of treated cells. This revealed compounds that disrupt a sub-network of MYCNA-specific regulatory proteins, resulting in MYCN degradation in vivo. The top hit was isopomiferin, a prenylated isoflavonoid that inhibited casein kinase 2 (CK2) in cells. Isopomiferin and its structural analogs inhibited MYC and MYCN in NBL and lung cancer cells, highlighting the general MYC-inhibiting potential of this unique scaffold.
    MeSH term(s) Humans ; Cell Line, Tumor ; Gene Expression Regulation, Neoplastic ; N-Myc Proto-Oncogene Protein/genetics ; N-Myc Proto-Oncogene Protein/metabolism ; Neuroblastoma/drug therapy ; Nuclear Proteins/genetics ; Nuclear Proteins/metabolism ; Oncogene Proteins/genetics ; Oncogene Proteins/metabolism ; Transcription Factors/metabolism
    Chemical Substances MYCN protein, human ; N-Myc Proto-Oncogene Protein ; Nuclear Proteins ; Oncogene Proteins ; Transcription Factors
    Language English
    Publishing date 2023-12-06
    Publishing country United States
    Document type Journal Article
    ISSN 2451-9448
    ISSN (online) 2451-9448
    DOI 10.1016/j.chembiol.2023.11.007
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: NSD2 maintains lineage plasticity and castration-resistance in neuroendocrine prostate cancer.

    Li, Jia J / Vasciaveo, Alessandro / Karagiannis, Dimitrios / Sun, Zhen / Chen, Xiao / Socciarelli, Fabio / Frankenstein, Ziv / Zou, Min / Pannellini, Tania / Chen, Yu / Gardner, Kevin / Robinson, Brian D / de Bono, Johann / Abate-Shen, Cory / Rubin, Mark A / Loda, Massimo / Sawyers, Charles L / Califano, Andrea / Lu, Chao /
    Shen, Michael M

    bioRxiv : the preprint server for biology

    2023  

    Abstract: The clinical use of potent androgen receptor (AR) inhibitors has promoted the emergence of novel subtypes of metastatic castration-resistant prostate cancer (mCRPC), including neuroendocrine prostate cancer (CRPC-NE), which is highly aggressive and ... ...

    Abstract The clinical use of potent androgen receptor (AR) inhibitors has promoted the emergence of novel subtypes of metastatic castration-resistant prostate cancer (mCRPC), including neuroendocrine prostate cancer (CRPC-NE), which is highly aggressive and lethal
    Language English
    Publishing date 2023-07-19
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2023.07.18.549585
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: A Graph Based Framework to Model Virus Integration Sites.

    Fronza, Raffaele / Vasciaveo, Alessandro / Benso, Alfredo / Schmidt, Manfred

    Computational and structural biotechnology journal

    2015  Volume 14, Page(s) 69–77

    Abstract: With next generation sequencing thousands of virus and viral vector integration genome targets are now under investigation to uncover specific integration preferences and to define clusters of integration, termed common integration sites (CIS), that may ... ...

    Abstract With next generation sequencing thousands of virus and viral vector integration genome targets are now under investigation to uncover specific integration preferences and to define clusters of integration, termed common integration sites (CIS), that may allow to assess gene therapy safety or to detect disease related genomic features such as oncogenes. Here, we addressed the challenge to: 1) define the notion of CIS on graph models, 2) demonstrate that the structure of CIS enters in the category of scale-free networks and 3) show that our network approach analyzes CIS dynamically in an integrated systems biology framework using the Retroviral Transposon Tagged Cancer Gene Database (RTCGD) as a testing dataset.
    Language English
    Publishing date 2015-11-30
    Publishing country Netherlands
    Document type Journal Article
    ISSN 2001-0370
    ISSN 2001-0370
    DOI 10.1016/j.csbj.2015.10.006
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: SMARCAL1 is a dual regulator of innate immune signaling and PD-L1 expression that promotes tumor immune evasion.

    Leuzzi, Giuseppe / Vasciaveo, Alessandro / Taglialatela, Angelo / Chen, Xiao / Firestone, Tessa M / Hickman, Allison R / Mao, Wendy / Thakar, Tanay / Vaitsiankova, Alina / Huang, Jen-Wei / Cuella-Martin, Raquel / Hayward, Samuel B / Kesner, Jordan S / Ghasemzadeh, Ali / Nambiar, Tarun S / Ho, Patricia / Rialdi, Alexander / Hebrard, Maxime / Li, Yinglu /
    Gao, Jinmei / Gopinath, Saarang / Adeleke, Oluwatobi A / Venters, Bryan J / Drake, Charles G / Baer, Richard / Izar, Benjamin / Guccione, Ernesto / Keogh, Michael-Christopher / Guerois, Raphael / Sun, Lu / Lu, Chao / Califano, Andrea / Ciccia, Alberto

    Cell

    2024  Volume 187, Issue 4, Page(s) 861–881.e32

    Abstract: Genomic instability can trigger cancer-intrinsic innate immune responses that promote tumor rejection. However, cancer cells often evade these responses by overexpressing immune checkpoint regulators, such as PD-L1. Here, we identify the SNF2-family DNA ... ...

    Abstract Genomic instability can trigger cancer-intrinsic innate immune responses that promote tumor rejection. However, cancer cells often evade these responses by overexpressing immune checkpoint regulators, such as PD-L1. Here, we identify the SNF2-family DNA translocase SMARCAL1 as a factor that favors tumor immune evasion by a dual mechanism involving both the suppression of innate immune signaling and the induction of PD-L1-mediated immune checkpoint responses. Mechanistically, SMARCAL1 limits endogenous DNA damage, thereby suppressing cGAS-STING-dependent signaling during cancer cell growth. Simultaneously, it cooperates with the AP-1 family member JUN to maintain chromatin accessibility at a PD-L1 transcriptional regulatory element, thereby promoting PD-L1 expression in cancer cells. SMARCAL1 loss hinders the ability of tumor cells to induce PD-L1 in response to genomic instability, enhances anti-tumor immune responses and sensitizes tumors to immune checkpoint blockade in a mouse melanoma model. Collectively, these studies uncover SMARCAL1 as a promising target for cancer immunotherapy.
    MeSH term(s) Animals ; Mice ; B7-H1 Antigen/metabolism ; Genomic Instability ; Immunity, Innate ; Melanoma/immunology ; Melanoma/metabolism ; Tumor Escape ; DNA Helicases/metabolism
    Chemical Substances B7-H1 Antigen ; Smarcal1 protein, mouse (EC 2.7.7.-) ; DNA Helicases (EC 3.6.4.-)
    Language English
    Publishing date 2024-01-31
    Publishing country United States
    Document type Journal Article
    ZDB-ID 187009-9
    ISSN 1097-4172 ; 0092-8674
    ISSN (online) 1097-4172
    ISSN 0092-8674
    DOI 10.1016/j.cell.2024.01.008
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Mesenchymal subtype neuroblastomas are addicted to TGF-βR2/HMGCR-driven protein geranylgeranylation.

    Stokes, Michael E / Small, Jonnell Candice / Vasciaveo, Alessandro / Shimada, Kenichi / Hirschhorn, Tal / Califano, Andrea / Stockwell, Brent R

    Scientific reports

    2020  Volume 10, Issue 1, Page(s) 10748

    Abstract: The identification of targeted agents with high therapeutic index is a major challenge for cancer drug discovery. We found that screening chemical libraries across neuroblastoma (NBL) tumor subtypes for selectively-lethal compounds revealed metabolic ... ...

    Abstract The identification of targeted agents with high therapeutic index is a major challenge for cancer drug discovery. We found that screening chemical libraries across neuroblastoma (NBL) tumor subtypes for selectively-lethal compounds revealed metabolic dependencies that defined each subtype. Bioactive compounds were screened across cell models of mesenchymal (MESN) and MYCN-amplified (MYCNA) NBL subtypes, which revealed the mevalonate and folate biosynthetic pathways as MESN-selective dependencies. Treatment with lovastatin, a mevalonate biosynthesis inhibitor, selectively inhibited protein prenylation and induced apoptosis in MESN cells, while having little effect in MYCNA lines. Statin sensitivity was driven by HMGCR expression, the rate-limiting enzyme for cholesterol synthesis, which correlated with statin sensitivity across NBL cell lines, thus providing a drug sensitivity biomarker. Comparing expression profiles from sensitive and resistant cell lines revealed a TGFBR2 signaling axis that regulates HMGCR, defining an actionable addiction in that leads to MESN-subtype-dependent apoptotic cell death.
    MeSH term(s) Antineoplastic Agents/pharmacology ; Apoptosis ; Biomarkers, Tumor/metabolism ; Cell Line, Tumor ; Fluvastatin/pharmacology ; Humans ; Hydroxymethylglutaryl CoA Reductases/metabolism ; Hydroxymethylglutaryl-CoA Reductase Inhibitors/pharmacology ; Lipids/chemistry ; Lovastatin/pharmacology ; Methotrexate/pharmacology ; N-Myc Proto-Oncogene Protein/metabolism ; Neuroblastoma/metabolism ; Protein Prenylation ; RNA, Small Interfering/metabolism ; Receptor, Transforming Growth Factor-beta Type II/metabolism ; Signal Transduction ; Triamterene/pharmacology
    Chemical Substances Antineoplastic Agents ; Biomarkers, Tumor ; Hydroxymethylglutaryl-CoA Reductase Inhibitors ; Lipids ; MYCN protein, human ; N-Myc Proto-Oncogene Protein ; RNA, Small Interfering ; Fluvastatin (4L066368AS) ; Lovastatin (9LHU78OQFD) ; HMGCR protein, human (EC 1.1.1.-) ; Hydroxymethylglutaryl CoA Reductases (EC 1.1.1.-) ; Receptor, Transforming Growth Factor-beta Type II (EC 2.7.11.30) ; TGFBR2 protein, human (EC 2.7.11.30) ; Triamterene (WS821Z52LQ) ; Methotrexate (YL5FZ2Y5U1)
    Language English
    Publishing date 2020-07-01
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-020-67310-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: A Graph Based Framework to Model Virus Integration Sites

    Raffaele Fronza / Alessandro Vasciaveo / Alfredo Benso / Manfred Schmidt

    Computational and Structural Biotechnology Journal, Vol 14, Iss C, Pp 69-

    2016  Volume 77

    Abstract: With next generation sequencing thousands of virus and viral vector integration genome targets are now under investigation to uncover specific integration preferences and to define clusters of integration, termed common integration sites (CIS), that may ... ...

    Abstract With next generation sequencing thousands of virus and viral vector integration genome targets are now under investigation to uncover specific integration preferences and to define clusters of integration, termed common integration sites (CIS), that may allow to assess gene therapy safety or to detect disease related genomic features such as oncogenes. Here, we addressed the challenge to: 1) define the notion of CIS on graph models, 2) demonstrate that the structure of CIS enters in the category of scale-free networks and 3) show that our network approach analyzes CIS dynamically in an integrated systems biology framework using the Retroviral Transposon Tagged Cancer Gene Database (RTCGD) as a testing dataset.
    Keywords Gene therapy ; Systems biology ; Genomics ; Insertional mutagenesis ; Biotechnology ; TP248.13-248.65
    Language English
    Publishing date 2016-01-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: A modular master regulator landscape controls cancer transcriptional identity.

    Paull, Evan O / Aytes, Alvaro / Jones, Sunny J / Subramaniam, Prem S / Giorgi, Federico M / Douglass, Eugene F / Tagore, Somnath / Chu, Brennan / Vasciaveo, Alessandro / Zheng, Siyuan / Verhaak, Roel / Abate-Shen, Cory / Alvarez, Mariano J / Califano, Andrea

    Cell

    2021  Volume 184, Issue 2, Page(s) 334–351.e20

    Abstract: Despite considerable efforts, the mechanisms linking genomic alterations to the transcriptional identity of cancer cells remain elusive. Integrative genomic analysis, using a network-based approach, identified 407 master regulator (MR) proteins ... ...

    Abstract Despite considerable efforts, the mechanisms linking genomic alterations to the transcriptional identity of cancer cells remain elusive. Integrative genomic analysis, using a network-based approach, identified 407 master regulator (MR) proteins responsible for canalizing the genetics of individual samples from 20 cohorts in The Cancer Genome Atlas (TCGA) into 112 transcriptionally distinct tumor subtypes. MR proteins could be further organized into 24 pan-cancer, master regulator block modules (MRBs), each regulating key cancer hallmarks and predictive of patient outcome in multiple cohorts. Of all somatic alterations detected in each individual sample, >50% were predicted to induce aberrant MR activity, yielding insight into mechanisms linking tumor genetics and transcriptional identity and establishing non-oncogene dependencies. Genetic and pharmacological validation assays confirmed the predicted effect of upstream mutations and MR activity on downstream cellular identity and phenotype. Thus, co-analysis of mutational and gene expression profiles identified elusive subtypes and provided testable hypothesis for mechanisms mediating the effect of genetic alterations.
    MeSH term(s) Adenocarcinoma/genetics ; Animals ; Cell Line, Tumor ; Colonic Neoplasms/genetics ; Gene Expression Regulation, Neoplastic ; Gene Regulatory Networks ; Genome, Human ; HEK293 Cells ; Humans ; Mice, Nude ; Mutation/genetics ; Neoplasms/genetics ; Reproducibility of Results ; Transcription, Genetic ; Mice
    Language English
    Publishing date 2021-01-11
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 187009-9
    ISSN 1097-4172 ; 0092-8674
    ISSN (online) 1097-4172
    ISSN 0092-8674
    DOI 10.1016/j.cell.2020.11.045
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Measuring risk culture in banks

    Arnaboldi, Fabio / Carretta, Alessandro / Schwizer, Paola / Vasciaveo, Caterina

    The Italian banks : which will be the "new normal"? : industrial, institutional and behavioural economics , p. 325-344

    how can behavioural auditing make the impossible possible

    2016  , Page(s) 325–344

    Author's details Fabio Arnaboldi, Alessandro Carretta, Paola Schwizer and Caterina Vasciaveo
    Keywords Bankrisiko ; Unternehmenskultur ; Risikomanagement ; Italien
    Language English
    Publisher Edibank
    Publishing place Roma
    Document type Article
    ISBN 978-88-449-1106-5 ; 88-449-1106-X
    Database ECONomics Information System

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