Patrizia Circelli

Milano, Lombardia, Italia Informazioni di contatto
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Pubblicazioni

  • Structure-based design and experimental engineering of a plant virus nanoparticle for the presentation of immunogenic epitopes and as a drug carrier.

    J Biomol Struct Dyn

    Biomaterials research for the discovery of new generation nanoparticles is one of the most active areas of nanotechnoloy. In the search of nature-made nanometer-sized objects, plant virus particles appear as symmetrically defined entities that can be formed by protein self-assembly. In particular, in the field of plant virology, there is plenty of literature available describing the exploitation of plant viral cages to produce safe vaccine vehicles and nanoparticles for drug delivery. In this…

    Biomaterials research for the discovery of new generation nanoparticles is one of the most active areas of nanotechnoloy. In the search of nature-made nanometer-sized objects, plant virus particles appear as symmetrically defined entities that can be formed by protein self-assembly. In particular, in the field of plant virology, there is plenty of literature available describing the exploitation of plant viral cages to produce safe vaccine vehicles and nanoparticles for drug delivery. In this context, we have investigated on the use of the artichoke mottled crinkle virus (AMCV) capsid both as a carrier of immunogenic epitopes and for the delivery of anticancer molecules. A dual approach that combines both in silico tools and experimental virology was applied for the rational design of immunologically active chimeric virus-like particles (VLPs) carrying immunogenic peptides. The atomic structures of wild type (wt) and chimeric VLPs were obtained by homology modeling. The effects of insertion of the HIV-1 2F5 neutralizing epitope on the structural stability of chimeric VLPs were predicted and assessed by detailed inspection of the nanoparticle intersubunit interactions at atomic level. Wt and chimeric VLPs, exposing on their surface the 2F5 epitope, were successfully produced in plants. In addition, we demonstrated that AMCV capsids could also function as drug delivery vehicles able to load the chemotherapeutic drug doxorubicin. To our knowledge, this is the first systematic predictive and empirical research addressing the question of how this icosahedral virus can be used for the production of both VLPs and viral nanoparticles for biomedical applications.

    Altri autori
    • Arcangeli Caterina
    • Donini Marcello
    • Aljabali AA
    • Benvenuto Eugenio
    • Lomonossoff George P
    • Marusic Carla
    Vedi pubblicazione
  • Efficient Agrobacterium-based transient expression system for the production of biopharmaceuticals in plants

    Bioengineered Bugs 1:3, 1-4; 2010 .

    We have recently described an efficient transient expression system mediated by Agrobacterium tumefaciens for the production of HIV-1 Nef protein in Nicotiana benthamiana plants. In order to enhance the yield of recombinant protein we assayed the effect of three gene-silencing viral suppressor proteins (P25 of Potato Virus X, P19 of Artichoke Mottled Crinckle virus and Tomato Bushy Stunt virus) on Nef expression levels. Results demonstrated that AMCV-P19 gave the highest Nef yield (1.3% of…

    We have recently described an efficient transient expression system mediated by Agrobacterium tumefaciens for the production of HIV-1 Nef protein in Nicotiana benthamiana plants. In order to enhance the yield of recombinant protein we assayed the effect of three gene-silencing viral suppressor proteins (P25 of Potato Virus X, P19 of Artichoke Mottled Crinckle virus and Tomato Bushy Stunt virus) on Nef expression levels. Results demonstrated that AMCV-P19 gave the highest Nef yield (1.3% of total soluble protein) and that this effect was correlated to a remarkable decrease of Nef-specific small interfering RNAs (siRNAs) indicating an effective modulation of RNA silencing mechanisms. Here we report additional data on the production of different heterologous proteins including human immunoglobulin heavy and light chains and a virus coat protein that demonstrate the robustness of this co-agroinfiltration expression system boosted by the AMCV-P19 gene-silencing suppressor.

    Key words: Agrobacterium tumefaciens, molecular farming, agroinfiltration, gene-silencing suppressor, HIV, immunoglobulin

    Altri autori
    • Marcello Donini
    • Maria Elena Villani
    • Eugenio Benvenuto
    • Carla Marusic.
    Vedi pubblicazione
  • Nef transient over-expression in Nicotiana benthamiana using the p19 silencing suppressorprotein of Artichoke Mottled Crinckle Virus.

    BMC Biotechnol 2009; 9:96.

    In recent years, different HIV antigens have been successfully expressed in plants by either stable transformation or transient expression systems. Among HIV proteins, Nef is considered a promising target for the formulation of a multi-component vaccine due to its implication in the first steps of viral infection. Attempts to express Nef as a single protein product (not fused to a stabilizing protein) in transgenic plants resulted in disappointingly low yields (about 0.5% of total soluble…

    In recent years, different HIV antigens have been successfully expressed in plants by either stable transformation or transient expression systems. Among HIV proteins, Nef is considered a promising target for the formulation of a multi-component vaccine due to its implication in the first steps of viral infection. Attempts to express Nef as a single protein product (not fused to a stabilizing protein) in transgenic plants resulted in disappointingly low yields (about 0.5% of total soluble protein). In this work we describe a transient expression system based on co-agroinfiltration of plant virus gene silencing suppressor proteins in Nicotiana benthamiana, followed by a two-step affinity purification protocol of plant-derived Nef.

    Altri autori
    • Raffaele Lombardi§
    • Patrizia Circelli§
    • Maria Elena Villani
    • Giampaolo Buriani
    • Valentina Coppola
    • Linda Bianc
    • Eugenio Benvenuto,
    • Marcello Donini
    • Carla Marusic.
    Vedi pubblicazione
  • The Dof protein DAG1 mediates PIL5 activity on seed germination by negatively regulating GA biosynthetic gene AtGA3ox1.

    The Plant Journal

    We have previously shown that inactivation of the gene encoding the Arabidopsis thaliana transcription factor DOF AFFECTING GERMINATION 1 (DAG1) renders seed germination more sensitive to both phytochrome B (phyB) and gibberellins (GA). dag1 mutant seeds require less red (R) light fluence and a lower GA concentration than WT to germinate. Here, we show that inactivation of the gene PHYTOCHROME INTERACTING FACTOR 3-LIKE 5 (PIL5) results in down-regulation of DAG1. Inactivation of PIL5 in the…

    We have previously shown that inactivation of the gene encoding the Arabidopsis thaliana transcription factor DOF AFFECTING GERMINATION 1 (DAG1) renders seed germination more sensitive to both phytochrome B (phyB) and gibberellins (GA). dag1 mutant seeds require less red (R) light fluence and a lower GA concentration than WT to germinate. Here, we show that inactivation of the gene PHYTOCHROME INTERACTING FACTOR 3-LIKE 5 (PIL5) results in down-regulation of DAG1. Inactivation of PIL5 in the dag1 mutant background further increased the germination potential of dag1 mutant seeds, supporting the suggestion that DAG1 is under the positive control of PIL5. Germination of dag1phyB seeds showed a reduced requirement of gibberellins as compared with phyB mutant seeds, both in the presence and in the absence of GA biosynthesis. Furthermore, the GA biosynthetic gene AtGA3ox1 is upregulated in dag1 seeds as compared with the WT, and DAG1 actually binds to the AtGA3ox1 promoter, as shown by chromatin immunoprecipitation experiments. Expression analysis at different time points confirms that AtGA3ox1 is directly regulated by DAG1, while suggesting that DAG1 is not a direct regulatory target of PIL5. Our data indicate that in the phyB pathway leading to seed germination, DAG1 negatively regulates GA biosynthesis and suggest that DAG1 acts downstream of PIL5. In addition, the analysis of hypocotyls of dag1 and phyB mutant plantlets, of plantlets overexpressing phyB in the dag1 mutant, as well as of dag1phyB double mutant suggests that DAG1 may act as a negative regulatory element downstream of phyB also in hypocotyl elongation.

    Altri autori
    • Stefano Gabriele,
    • Annalisa Rizza,
    • Julie Martone,
    • Patrizia Circelli,
    • Paolo Costantino
    • Paola Vittorioso
    Vedi pubblicazione

Progetti

  • microorc

    Microbiomes fighting food waste through applicable solutions in food processing, packaging and shelf life (micrOOrc). Role: WP Leader

  • C4B

    Circular Bio-Based Business models to create high-value Bio-based products in integrated value chains is funded by Horizon Europe with the aim of fostering collaborations between producers and innovative business models to create high-value biobased products. Role: coordinator

  • BIOMODEL4REGIONS

    Supporting the establishment of the innovative governance models to achieve better-informed decision-making processes, social engagement and innovation in the bio-based economy. Call Topic HORIZON-CL6-2021-GOVERNANCE-01-07. Role: coordinator.

    Vedi progetto
  • PYROCO2

    Demonstrating sustainable value creation from industrial CO2 by its thermophilic microbial conversion into acetone. Call Topic: LC-GD-3-1-2020: Closing the industrial carbon cycle to combat climate change - Industrial feasibility of catalytic routes for sustainable alternatives to fossil resources. (October 2021- September 2026) (Coordinator:SINTEF). CTECH Role: WP Leader of the WP Exploitation and Dissemination.

    Vedi progetto
  • GLAMOUR

    - Presente

    GLycerol to Aviation and Marine prOducts with sUstainable Recycling.

    (Coordinator: THE UNIVERSITY OF MANCHESTER). WP Leader of the WP7, Exploitation and dissemination.

    Vedi progetto
  • FARMŸNG

    - Presente

    FlAgship demonstration of industrial scale production of nutrient Resources from Mealworms to develop a bioeconomY New Generation.

    (Coordinator: YNSECT). Involved in WP8 Exploitation and Dissemination.

    Vedi progetto
  • BIOBESTicide

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    BIO-Based pESTicides production for sustainable agriculture management plan.
    (Coordinator: BIOVITIS). WP Leader of the WP7, Exploitation and Dissemination.

    Vedi progetto
  • Indus3Es: (October 2015- July 2019)

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    The project, receiving funding in the frame of Horizon 2020 TOPIC EE-18-2015, focuses on the development of new technologies for utilization of heat recovery in large industrial systems. The Indus3Es project will develop an innovative Absorption Heat Transformer to recover the low temperature waste heat, nowadays rejected from industries, due to the low quality of heat and the currently used technologies. Indus3Es will recuperate and valorize about 50% of the current low temperature waste heat,…

    The project, receiving funding in the frame of Horizon 2020 TOPIC EE-18-2015, focuses on the development of new technologies for utilization of heat recovery in large industrial systems. The Indus3Es project will develop an innovative Absorption Heat Transformer to recover the low temperature waste heat, nowadays rejected from industries, due to the low quality of heat and the currently used technologies. Indus3Es will recuperate and valorize about 50% of the current low temperature waste heat, increasing quality of the waste source and reusing it again in the industrial process.

    As innovation and technology transfer organisation, CIAOTECH/PNO is involved in dissemination and exploitation activities .

    Vedi progetto
  • DEMETER (Agust 2016 - July 2019)

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    The project, funded in the frame of Horizon 2020 Public-Private Partnership Bio-Based Industries Joint Undertaking, aim to demonstrate a yield increase and cost reduction of the production process of a C1-based biogas enzyme as well as its positive effect on biogas production in Europe. DEMETER will thus increase the yield of the fermentation process at an industrial scale as well as the down-stream processing, reducing the cost of the end product and making the enzyme available for wide-spread…

    The project, funded in the frame of Horizon 2020 Public-Private Partnership Bio-Based Industries Joint Undertaking, aim to demonstrate a yield increase and cost reduction of the production process of a C1-based biogas enzyme as well as its positive effect on biogas production in Europe. DEMETER will thus increase the yield of the fermentation process at an industrial scale as well as the down-stream processing, reducing the cost of the end product and making the enzyme available for wide-spread application in biogas production throughout Europe.

    CIAOTECH/PNO acts as Leader of WP5 of LCA, Techno-economical evaluation, and exploitation activities. Based on its extensive experience in consulting and innovation management, it supports the project partners in the economic and environmental evaluation of the developed enzyme products, as well as in the development of an exploitation plan. CIAOTECH/PNO also leads Dissemination & Communication activities.

    Vedi progetto
  • BIOPEN

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    Project funded under the call BBI-2016-S03 and coordinated by CIAOTECH. I am the coordinator of the proposal.

    BIOPEN ambition is to become a single voice for the bio-based industries in Europe, gathering expertise and promoting engagement and involvement of industry, researchers and academia at European and national level, by setting up an Openinnovation platform addressing strategic cross-cutting challenges such as (i) clustering and networking to develop new value chains and favour…

    Project funded under the call BBI-2016-S03 and coordinated by CIAOTECH. I am the coordinator of the proposal.

    BIOPEN ambition is to become a single voice for the bio-based industries in Europe, gathering expertise and promoting engagement and involvement of industry, researchers and academia at European and national level, by setting up an Openinnovation platform addressing strategic cross-cutting challenges such as (i) clustering and networking to develop new value chains and favour the emergence of co-innovation partnerships across the value chains; (ii) Stakeholders engagement and
    support with regards to setting-up at least 20 co-innovation partnerships alongside existing and new value chains; (iii) creation of a knowledge centre collecting the prospective and insight of the community, and providing access to relevant information for markets and products innovations in the bio-based ecosystem.

    CTECH will be the coordinator of the project. CTECH will also be responsible for supporting the set-up of co-innovation partnerships alongside new and existing value chains (WP5) and will lead the Exploitation Strategy and Sustainability Plan development. CTECH will participate in all the other WPs as contributor.

    Vedi progetto
  • KaRMA2020 (January 2017 – December 2019)

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    The project, receiving founding in the frame of Horizon2020 TOPIC SPIRE-03-2016: Industrial technologies for the valorisation of European bio-resources into high added value process streams, aims to the development of industrial conversion methods and exploitation strategies of poultry feathers waste as useful raw material for innovative green products.

    CIAOTECH/PNO leads dissemination and exploitation activities as well the evaluation of replicability potential, ensuring the project…

    The project, receiving founding in the frame of Horizon2020 TOPIC SPIRE-03-2016: Industrial technologies for the valorisation of European bio-resources into high added value process streams, aims to the development of industrial conversion methods and exploitation strategies of poultry feathers waste as useful raw material for innovative green products.

    CIAOTECH/PNO leads dissemination and exploitation activities as well the evaluation of replicability potential, ensuring the project impact among relevant stakeholders

    Vedi progetto
  • REE4EU (October 2015- October 2019)

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    The project, funded in the frame of Horizon 2020 TOPIC SPIRE-07- 2015, will realize a breakthrough innovation in the field of Recovery Technologies for Metals and other Minerals. It will make available Rare Earth elements and Rare Earth alloys for magnet production by developing, for the first time at industrial scale, an efficient and cost effective method of extraction and a direct production route for Rare Earth Alloys which will be achieved through in-process and End-of-Life Permanent…

    The project, funded in the frame of Horizon 2020 TOPIC SPIRE-07- 2015, will realize a breakthrough innovation in the field of Recovery Technologies for Metals and other Minerals. It will make available Rare Earth elements and Rare Earth alloys for magnet production by developing, for the first time at industrial scale, an efficient and cost effective method of extraction and a direct production route for Rare Earth Alloys which will be achieved through in-process and End-of-Life Permanent Magnets (PM) waste as well as Secondary Batteries (SB) waste.

    As innovation and technology transfer organisation, CIAOTECH/PNO leads dissemination and exploitation activities in the project, ensuring the project impact among relevant stakeholders, assuring alignment and smooth flows of information and providing close integration with Europe’s research and innovation programmes, platforms and organisations.

    Vedi progetto
  • BIOMIMETIC (July 2012-June 2015)

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    It is a project co-funded by the FP7 of the European Commission, under the funding scheme Cooperation-ENVIRONMENT THEME [ENV.2011.3.1.9-1] [Eco-innovation!]. The BIO-MIMETIC project aimed to set-up a novel pre-industrial enzymatic-based bio-polymerization process, for the development of marketable bioinspired and bio-based products. CTECH/PNO was responsible for dissemination & exploitation. As CIAOTECH / PNO we collaborated with all partners for the development of an exploitation plan…

    It is a project co-funded by the FP7 of the European Commission, under the funding scheme Cooperation-ENVIRONMENT THEME [ENV.2011.3.1.9-1] [Eco-innovation!]. The BIO-MIMETIC project aimed to set-up a novel pre-industrial enzymatic-based bio-polymerization process, for the development of marketable bioinspired and bio-based products. CTECH/PNO was responsible for dissemination & exploitation. As CIAOTECH / PNO we collaborated with all partners for the development of an exploitation plan. Moreover as leaders of the dissemination, by leveraging on our network we carried out an coordinated several dissemination activities for the BIO-MIMETIC project, some of the activities realized can be seen in the results webpage.

    Vedi progetto
  • BIO-TIC (August 2012-July 2015)

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    CSA launched in September 2012, the three-year project was “a solutions approach” centered on an extensive roadmap development process comprehensively examining innovation hurdles in IB across Europe that involves a broad stakeholder base from industry, knowledge organisations, governments and civil society. A series of stakeholder workshops are taking place at national and European level to reach a comprehensive view on solutions BIO-TIC can offer to accelerate market uptake of industrial…

    CSA launched in September 2012, the three-year project was “a solutions approach” centered on an extensive roadmap development process comprehensively examining innovation hurdles in IB across Europe that involves a broad stakeholder base from industry, knowledge organisations, governments and civil society. A series of stakeholder workshops are taking place at national and European level to reach a comprehensive view on solutions BIO-TIC can offer to accelerate market uptake of industrial biotechnology. The final aim of the project is to draw up a blueprint document with a comprehensive set of policy recommendations for overcoming the identified innovation hurdles within a selection of European business and societal opportunities.

    As CIAOTECH/PNO we were involved in developing guidelines to assist the organisation of the regional and EU business case bio-workshops and to relize direct interview with the stakeholders . We are also responsible for the final integration of the 3 roadmaps into a consolidated document for presentation to EU policy makers.

    Vedi progetto
  • BIOCHEM - EUROPE INNOVA (February 2010- April 2013)

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    It is a project funded by European Commission DG Enterprise to develop, tailor and integrate an innovation toolbox and services for the bio-based product sector, including novel European Federated Seed and Venture Fund, Venture Capital and Partnering Events, a European Partnering database, training services, tested with Small and Medium Sized enterprises all over Europe.
    As Ciaotech/PNO we assisted SMEs in identifying and exploiting finance opportunities for proof-of-concept projects across…

    It is a project funded by European Commission DG Enterprise to develop, tailor and integrate an innovation toolbox and services for the bio-based product sector, including novel European Federated Seed and Venture Fund, Venture Capital and Partnering Events, a European Partnering database, training services, tested with Small and Medium Sized enterprises all over Europe.
    As Ciaotech/PNO we assisted SMEs in identifying and exploiting finance opportunities for proof-of-concept projects across the European landscape taking into consideration all sources of EU funding.

    Vedi progetto

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    Conoscenza madrelingua o bilingue

  • Inglese

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