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News U20

News U20

A more effective nanomedicine has been developed for the treatment of Fabry rare disease.

28 February: International Rare Disease Day

  • This is one of the major achievements of the European Smart4Fabry project, which is now coming to an end after four years of work.
  • The results have been made possible by nanotechnology and the approach developed could be applied to other drugs in the future.
  • The new drug improves on current treatments and helps reduce costs and improve patients’ quality of life.

Barcelona, 26 February 2021.- The advance of nanomedicine opens up new possibilities in the development of drugs, such as the one recently developed for the rare disease Fabry, with improved efficacy compared to existing authorised treatments.

Thus, the European Smart4Fabry project has come to an end with one of the best results possible: the designation of a new orphan drug by the European Commission and the possibility of making progress in the treatment of Fabry, a rare disease that is estimated to affect approximately 2.6 out of every 10,000 people in the EU.

It is a chronic debilitating disease due to recurrent episodes of severe pain that is difficult to control with conventional analgesics, and it is life-threatening due to renal failure and associated cardiovascular and cerebrovascular complications.

With this designation we have made a major achievement, not only for Fabry patients, but also for other pathologies that can benefit from this same approach, made possible by nanotechnology,” explained Nora Ventosa, Scientific Director of NANBIOSIS Unit 6 Biomaterial Processing and Nanostructuring Unit of CIBER-BBN and ICMAB-CSIC who coordinated the project.

Need for new treatments for the disease

This disease, also known as Anderson-Fabry disease, represents the most common lysosomal storage disorder. It is caused by an absence or deficiency of the enzyme α-galactosidase A (GLA), which results in the lysosomal accumulation of globotriaosylceramide (Gb3) and its derivatives in the lysosomes of a wide variety of tissues, responsible for the clinical manifestations. Current treatments consist of intravenous administration of the GLA enzyme, but have limited efficacy and poor biodistribution.

The drug that has been developed is a new nanoformulation of GLA (nanoGLA) that improves efficacy compared to the reference treatment with non-nanoformulated GLA. “The third-generation liposomal product we have developed in the project has demonstrated, at preclinical level, improved efficacy, compared to authorised enzyme replacement treatments, demonstrating that the strategy of supplying the affected cells with the GLA enzyme via the smart nanoliposome is highly successful”, explained Ibane Abasolo, Scientific Coordinator of NANBIOSIS U20 of CIBER-BBN and VHIR, who is responsible for the efficacy studies in the project.

The nanoGLA product was obtained using DELOSTM formulation technology, an innovative platform for the robust production of nanomedicines in an efficient and sustainable manner.

The Committee for Orphan Medicinal Products, the European Medicines Agency’s (EMA) committee responsible for recommending orphan designation of medicines for rare diseases, has considered these results to have a clinically relevant advantage over current enzyme replacement therapies.

The designation of orphan drug, in addition to recognising the significant benefit of the new nanomedicine over products already licensed for Fabry disease, has important implications for the translation of the new therapeutic product from bench to bedside.

Those responsible for these results, including several CIBER-BBN groups, highlight that the new formulation helps to improve treatments, reduce costs, and improve the quality of life of Fabry patients.

Interdisciplinarity and public-private collaboration

The Smart4Fabry project has been running since 2017 thanks to European funding of €5.8 million, from the Horizon 2020 programme. This was possible thanks to the collaboration of several CIBER-BBN groups and NANBIOSIS Units at the Institute of Materials Science of Barcelona (ICMAB-CSIC) with the abouve mentioned NANBIOSIS Unit 6, the Institute for Advanced Chemistry of Catalonia (IQAC-CSIC) with NANBIOSIS Unit 3 of
Synthesis of Peptides Unit
, led by Miriam Royo, the Vall d’Hebron Research Institute (VHIR) with NANBIOSIS Unit 20 and the Institute of Biotechnology and Biomedicine of the Autonomous University of Barcelona (IBB-UAB) with NANBIOSIS Unit 1 Protein Production Platform (PPP), whose work in this project was led by José Luis Corchero. It has also been necessary to contribute knowledge from different academic and business disciplines.

The project consortium also includes public institutions such as the University of Aarhus (Denmark), Technion Israel Institute of Technology (Israel) and Joanneum Research (Austria); and the companies Biokeralty (Spain); Nanomol Technologies SL (Spain); BioNanoNet (Austria), Drug Development and Regulation SL (Spain), the Covance Laboratories LTD group (UK) and Leanbio SL (Spain), which have provided the necessary expertise in nanotechnology and biotechnology, physicochemical characterisation, in vitro and in vivo biological evaluation, formulation and grading of nanomedicines, and pharmaceutical development and production under the guidelines of regulatory agencies.

CIBER and CSIC, promoters of orphan drugs

Orphan Drug Designations (ODDs) seeks to facilitate the arrival of treatments for rare diseases on the market. Several incentives are associated with ODDs, such as market exclusivity, fee reductions and specific scientific advice.

To date, CIBER has promoted eleven orphan drugs designated by the EMA, mainly from the thematic area of Rare Diseases (CIBERER), this being the first from CIBER-BBN.

On the other hand, this is the fourth ODD that the CSIC has obtained, and the first time it refers to a nanoformulated drug.

Orphan drug designation by the European Medicines Agency has several advantages, such as receiving a commercialisation authorisation for 10 years during which similar products cannot be commercialised, the availability of free or low-cost scientific advice and support protocols, and exemption from designation fees. In addition, entities developing orphan drugs have access to specific grants from the European Union and member states’ programmes.

More information

Scientific Culture Unit UCC+i CIBER cultura.cientifica@ciberisciii.es

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NANBIOSIS Scientific Women in the International Day of Women and Girls in Science

Today February 11 is the International Day of Women and Girls in Science, a day to raise awareness of the gender gap in science and technology.

According to the United Nations, while yet women and girls continue to be excluded from participating fully in science, science and gender equality are vital to achieve the internationally agreed development goals, including the 2030 Agenda for Sustainable Development. Thus, in recent years, the international community has made a great effort to inspire and promote the participation of women and girls in science.

NANBIOSIS wants to acknowledge  the efforts made by scientific women who struggle every day to contribute their bit to Science and highlight their essential role in nowadays research. Especially we want to recognize the work of scientists women involved in NANBIOSIS, whatever is the nature of their contribution: technical, scientific development, management, coordination, direction, etc; just to mention some examples:
Neus Ferrer and Mercedes Márquez in the Scientific Direction and Coordination of Unit 1 Protein Production Platform (PPP)
Pilar Marco and Nuria Pascual in the Management and Scientific Coordination of U2 Custom Antibody Service (CAbS) 
Miriam Royo in the Scientific Direction of U3 Synthesis of Peptides Unit
Nora Ventosa and Nathaly Segovia in the Scientific Direction and Technical Coordination of U6 Biomaterial Processing and Nanostructuring Unit
Isabel Oliveira and Teresa Galán in the Coordination of U7 Nanotecnology Unit
Rosa Villa and Gemma Gabriel in the Management and Scientific Coordination of U8 Micro – Nano Technology Unit
Gema Martínez in the Scientific Coordination of U9 Synthesis of Nanoparticles Unit
Fany Peña in the Scientific Coordination of U13 Tissue & Scaffold Characterization Unit
Mª Luisa González Martín and Margarita Hierro in the of Direction and Scientific Coordination of U16 Tissue & Scaffold Characterization Unit
Gemma Pascual and Isabel Trabado in the Coordination of the U17 Confocal Microscopy Service
Isolda Casanova in the Scientific Coordination of U18 Nanotoxicology Unit
Beatriz Moreno in the Scientific Direction of Unit 19 Clinical tests lab
Ibane Abásolo in the Scientific Coordination of Unit 20 In Vivo Experimental Platformt
Verónica Crisóstomo in the Scientific Direction of Unit 24 Medical Imaging 
Ana Paula Candiota in the Scientific Coordination of Unit 25 Biomedical Applications I 
Maria Luisa García in the Scientific Direction of U28 NanoImaging Unit from Bionand, recently incorporated to NANBIOSIS, Anna Aviñó in the Scientific Coordination of U29 Oligonucleotide Synthesis Platform (OSP) – and

Nerea Argarate in the coordination of NANBIOSIS

Thanks to all of you and your teams!

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Nanoparticles to eradicate Cancer Stem Cells

Colorectal cancer (CRC) has a high prevalence worldwide and resistance to conventional chemotherapies and tumor relapse are usually related with a population of cells with malignant properties – Cancer Stem Cells (CSC).

Scientists of CIBER-BBN and VHIR have led a research with the goal not only to treat the primary CRC, but also eradicate CSC. For both purposes, the use of nanoparticles (NP) is a useful strategy. These “bullets” carrying a drug in its core, are able to reach tumor tissue due to its small size. Cancer cells, and in particular CSC, present at their surface receptors that could be specifically recognized by molecules used to decorate NP, driven the drug of interest to these cells. In this work we developed a type of NP decorated with an antibody fragment that specifically recognize the receptor CD44v6, which is overexpressed in CSC and was previously demonstrated to be present in patients with metastasis and poor-prognosis. Moreover, researchers have encapsulated Niclosamide (NCS), a drug that demonstrated efficacy against breast CSC, inside their NP.  NP increased the efficacy of NCS and​ accumulated in the tumors reducing its systemic exposure and increasing safety. Most importantly, the developed system significantly reduce circulating tumor cells, precursors of metastasis, reducing CSC malignancy.

This system has the potential to create a new therapeutic approach that could bring a new hope for CRC treatment and prevention of cancer relapse.​

The work has been developed at the group of CIBBIM-Nanomedine_Drug Deliver & Targeting of Vall d’Hebron Institute of Research (VHIR) and CIBER-BBN, in collaboration with Bruno Sarmento (University of Porto, Portugal) and Marika Nestor (Uppsala University, Sweden) that helped to developed the NP and the targeting antibody, respectively. In vivo assays on the safety and efficacy of the NPs were conducted thanks to the contribution of the FVPR/U20 of ICTS-Nanbiosis. ​

Article of reference

Fernanda Andrade, Diana Rafael, Mireia Vilar-Hernández, Sara Montero, Francesc Martínez-Trucharte, Joaquin Seras-Franzoso, Zamira V.Díaz-Riascos, Ana Boullosa, Natalia García-Aranda, Patricia Cámara-Sánchez, Diego Arango, Marika Nestor, bane Abasolo, Bruno Sarmento, Simó SchwartzPolymeric micelles targeted against CD44v6 receptor increase niclosamide efficacy against colorectal cancer stem cells and reduce circulating tumor cells in vivo Journal of Controlled Release Volume 331, 10 March 2021, Pages 198-212 https://doi.org/10.1016/j.jconrel.2021.01.022

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New spin off of VHIR “BSURE Medical” led by Simó Schwartz (NANBIOSIS U20)

Dr. Simó Schwartz, Scientific Director of NANBIOSIS U20 and head of the “Drug Delivery and Targeting group” of CIBER-BBN and VHIR, toghether with Dr. Jaume Alijotas (VHIR), have promoted the creation of the Spin-off ·BSURE Medical· for the devlopment of products and services for the diagnosis, prevention and consultation of aspects related to treatments with all types of bioimplants.

One of the objectives of the Drug Delivery and Targeting group is to carry out preclinical studies to determine the effects and toxicities of drug delivery systems, cell therapies and biomaterials. Studies chace been carried out through the Nanbiosis unit U20, of which the CIBBIM-Nanomedicine platform for functional validation and preclinical studies (FVPR) is a part. The group’s interest in studying the immune-related adverse effects caused by different biomaterials, allowed the identification and validation in two clinical studies of the predictive use of specific genetic biomarkers associated with severe late responses caused by injectable biomaterials, the basis of the new company BSure Medical.

Dr. Jaume Alijotas and Simó Shwartz have led the development of a procedure that makes it possible to determine, reliably and easily the risk of suffering serious late-onset immune, local, regional or systemic adverse effects (edema, angioedema, induration of skin, multiple inflammatory nodules, panniculitis, even granulomatous or autoimmune diseases…) after implantation of an injectable biomaterial, such as dermal or subcutaneous fillers. This risk is strongly associated with the presence of certain antigen profiles in a biological sample of the individual, which allows them to be easily identified from the analysis of blood or saliva samples.

The technology is patented and has been validated in two independent clinical trials coordinated by the Systemic Autoimmune Diseases Unit of the Vall d’Hebron University Hospital in Barcelona and by the Dermatology Department of the Erasmus Medical Center, Rotterdam and the Department of Plastic Surgery, VU University Medical Center, Amsterdam. The VHIR has granted BSURE a license to use and exploit it exclusively and worldwide. The patent has already been granted in Europe, Brazil and Japan

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Smart-4-Fabry final workshop

Next Wedneday, February 3, 2021 will take place the on-line event Smart-4-Fabry Final Workshop.  

Smart-4-Fabry is a european project, coordinated by CIBER-BBN wich has been developed during four years. This project is a sign of cooperation at European level to boost nanomedicine development and translation to clinical stages.

This project is also a clear example of the relevance of access to advanced research infrastructures as NANBIOSIS -ICTS. Four NANBIOSIS units have collaborated and contributed to Smart-4-Fabry development:

“The Fabry disease (FD) is a lysosomal storage disorder (LSD) that currently lacks an effective treatment” as Prof. Nora Ventosa, IP of the project, explained for NANBIOSIS blog – The aim of Smart-4-Fabry is to obtain a new nanoformulation of GLA, that will improve the efficacy and toleration compared to the actual treatment with non-formulated GLA.

In the final workshop experts will talk about how, why and for what the solution proposed by Smart4Fabry was conceived.

Registrations and program at https://smart4fabry.cientifis.com/

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New patented peptide to allows the faster internalization of drugs within cells and the design of more effective therapeutic nanoconjugates

Researchers of NANBIOSIS Unit 20 In vivo Experimental Platform of CIBER-BBN and Vall d’Hebron Research Institute (VHIR) have patented a peptide that, in comparison to the current standard treatment, is much faster, internalizes much more, and does not cause any toxicity.

The membrane of a cell is an effective barrier that hinders the targeted delivery of molecules, such as therapeutic compounds. During the last years, several strategies have been developed to get the molecules into the cell interior but, in general, the methods developed still show a low efficacy and / or toxicity. “The use of therapeutic nanoconjugates such as nanomedicines facilitates the transport and delivery of drugs in target cells, but often with less efficiency than we would like,” says Dr Simó Schwart Jr, head of the Scientific Director of NANBIOSIS Unit 20 and the CIBBIM-Nanomedicine group: Direction i Alliberament Farmacològic del Vall d’Hebron Research Institute (VHIR)/CIBER-BBN.

Given the need to get more drugs or proteins into cells, one of the alternatives to be able to increase the amount that enters their interior more quickly is what is known as Cell penetrating peptides or cellular internalizing peptides, small sequences of amino acids that have the ability to interact with the plasma membranes of cells and, as a result of this interaction, make it easier to internalize the cargo they carry. An example of application would be when an internalizing peptide binds to a therapeutic nanoconjugate, achieving a greater capacity for the nanoconjugate to enter the cell interior and, therefore, to release the drugs it carries into the cells.

Until now, one of the most important internalizing peptides used has been known as TAT. Now, a team of researchers led by Dr. Schwartz Jr, has discovered a sequence common to a family of peptides that significantly outperforms the TAT results and facilitates the cellular internalization of nanoconjugates in a very significant way. These peptides are derived from a membrane protein called CD300 which has a very high capacity to interact with sphingomyelin, a lipid found in all plasma membranes and also in intracellular organelles. “The peptides in our patent”, explains Dr. Simó Schwartz Jr, “are derived from an extracellular part of CD300, which has a high capacity to bind sphingomyelin. Compared to the current standard treatment, TAT, CD300f7 is much faster, internalizes much more, and does not cause any toxicity. The use of these peptides in nanomedicine therefore facilitates and increases the internalization process of all the cargo they carry. This means that we are able to introduce drugs into cells in less time and in greater quantities ”. The results of this discovery not only allow for faster internalization within the cell, but also open the door to designing much more effective therapeutic nanoconjugates.

Souce of information: VHIR news

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CLINAM 2020: Clinical Nanomedicine and the Impact of Digitalization and Artificial Intelligence for Precision Medicine

CLINAM, the European Foundation for Clinical Nanomedicine will celebrate on October 26 – 28, 2020 the 12th European and Global Summit for Nanomedicine with the subject Clinical Nanomedicine and the Impact of Digitalization and Artificial Intelligence for Precision Medicine. The Technologies for Diagnosis & Therapy in Patient-Centric Medicine The Conference will take place in Live Stream, due to the COVID-19 pandemic.

NANBIOSIS will participate in the Virtual Enhibition and in the poster session with a poster “Cutting Edge Biomedical Solutions in Health for Translation into Clinics”. Also Prof. Simó Schwartz, Scientific Director of NANBIOSIS U20 In vivo Experimental Platform, will give a talk about “Delivery of AntiCancer stem cell drugs in colorectal metastatic cancer” and Dr. Ibane Abasolo, Scientific Coordinator of the same Unit, will participate with a talk titled “Extracellular vesicles increase the efficacy of Enzyme Replacement Therapy in Lysosomal Storage Disorders”.

The Virtual Lounge will be available as from October 21, 2020.

Registration Link for CLINAM SUMMIT 12 / 2020 (click here)

The final program: Download)

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Rare diseases Day February 29: combating Fabry Disease

29 of February is a ‘rare’ date and February, a month with a ‘rare’ number of days, has become a month to raise awareness about rare diseases and their impact on patients’ lives.  Since 2008 thousands of events happen every year all around the world and around the last day of February.

NanoMed Spain Platform and the Hospital of Sant Joan de Déu have organized the NanoRareDiseaseDay to present the latest innovations in the field of Nanomedicine for the treatment and diagnosis of rare diseases (diseases affecting less than 5 people per 10,000 inhabitants). Nora Ventosa, Scientific Director of NANBIOSIS U6 Biomaterial Processing and Nanostructuring Unit  (CIBER-BBN / ICMAB-CSIC) presented Smart4Fabry a European project with the aim of reducing the Fabry disease treatment cost and improve the life-quality of Fabry disease patients

Fabry disease is one of the rare diseases that currently lack a definitive cure. It is cause by lysosomal storage disorders (LSDs):  the deficiency of α-Galactosidase A (GLA) enzyme activity result in the cellular accumulation of neutral glycosphingolipids, leading to widespread vasculopathy with particular detriment to the kidneys, heart and central nervous system.

Smart-4-Fabry has been conceived to obtain a new nanoformulation of GLA, that will improve the efficacy and toleration compared to the actual treatment with non-formulated GLA. Four units of NANBIOSIS participate in the project:

U1 Protein Production Platform (PPP) led by Neus Ferrer and Antony Villaverde at IBB-UAB accomplish the production and purification in different expression systems for R&D purposes.

U3 Synthesis of Peptides Unit led by Miriam Royo at IQAC-CSIC performs all the chemical process of the Smart-4-Fabry  project, i.e. design and synthesis of peptides used as targeting ligands in the nanoliposome formulation

U6 Biomaterial Processing and Nanostructuring Unit led by Nora Ventosa and Jaume Veciana at ICMAB-CSIC undertakes tasks related to the manufacture of the nanoliposome formulation of GLA enzyme and the physico-chemical characterization (this unit counts with plants at different scales, from mL to L, which allow process development by QbD and process scale-up, as well as instrumental techniques for assessment of particle size distribution, particle concentration, particle morphology and stability, and Z-potential)

U20 In Vivo Experimental Platform led by Simó Schwartz and Ibane Abásolo at VHIR to carry out the non-GLP preclinical assays of the project (in vivo efficacy, biodistribution and tolerance/toxicity assays).

For further information about Fabry disease and the Smart4Fabry project: here

Nora Ventosa explaining the progress of the smart4fabry
project on nanoliposomes development for the treatment of Fabry disease
(Pictures by Nanomed Spain)
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NANBIOSIS research to fight cancer

Twenty years ago, the 4 February was declared World Cancer Day with the global challenge of cancer would not be forgotten. Since then, huge progress has been made to understand, prevent, diagnose, and treat cancer.

NANBIOSIS as an ICTS (Singular Scientific and Technical infrastructures) for biomedical research plays a very important role in the fight against cancer. Some examples of the work carried out during the last year, are bellow:

Unit 20 of NANBIOSIS  at VHIR, works in several proyects reletaed to cancer as  H2020-NoCanTher: magnetic nanoparticles against pancreatic cancer through the use of hyperthermia combined with conventional treatment. H2020-Target-4-Cancer: nanotherapy based on polymeric micelles directed against specific receptors of tumor stem cells in colorectal cancer. H2020-DiamStar: nanodiamonds directed against leukemia for the potentiation of chemotherapy. FET-OPEN EvoNano: in silico and tumor-tumor models for the prediction of PK / PD and tumor efficacy of antitumor nanomedicines against tumor stem cells.

The activities of U1 of Protein Production Platform (PPP) are also strongly committed with several projects devoted to develop new, more selective and more efficient antitumoral drugs, with antimetastatic effects.
oordinated action between units U1 of Protein Production Platform (PPP),
U18 of Nanotoxicology and U29 of Nucleic Acid Synthesis, shows promising results in development of nanopharmaceuticals with a high degree of efficacy for the treatment of metastases in colon cancer

Unit 6 of NANBIOSIS Biomaterial Processing and Nanostructuring Unit  is also working on a joined initiative between CIBER-BBN and CIBER-ONC to improve the current ex vivo immune cell expansion systems to help introduce immunotherapies such as the adoptive cell therapies, which have shown complete remissions of terminal cancer patients, to the clinics overcoming the limitation of having enough therapeutic cells with novel Nanobiomaterials. Researchers of Unit 6 and researchers of Laboratory of Translational Research in Child and Adolescent Cancer from the Vall d’Hebron Research Institute (VHIR), are working on a project financed by the Spanish Government and CIBER-BBN, for the development of a new nanomedicine for the treatment of high-risk neuroblastoma, one of the most frequent childhood cancers.

In our unit U26. NMR: Biomedical Applications II,  several studies for cancer biomarker discovery are being carried out. NMR studies on biofluids for the design of novel strategies for diagnosis support, easily transferable into the clinical practice, are being developed in biofluids in the context of cancer. Urine is one of the most easily obtainable biofluid and is a non-invasive source of biomarkers. Among these studies, we can mention the good discrimination achieved between urine from bladder cancer patients before surgery (cancer) and urine after surgery (free of cancer) and in the follow up of the disease, to monitor relapses

Some of the results of these researchs have been published in scientific magazines of high impact as for exemple;

Integrative Metabolomic and Transcriptomic Analysis for the Study of Bladder Cancer Alba Loras, Cristian Suárez-Cabrera, M. Carmen Martínez-Bisbal, Guillermo Quintás , Jesús M. Paramio, Ramón Martínez-Máñez,
Salvador Gil and José Luis Ruiz-Cerdá. Cancers 2019, 11, 686; doi:10.3390/cancers11050686

Nanostructured toxins for the selective destruction of drug-resistant human CXCR4+ colorectal cancer stem cells Naroa Serna, Patricia Álamo, Prashanthi Rameshef, Daria Vinokurovaef, LauraSánchez-García, Ugutz Unzueta, Alberto Gallardo, María  Virtudes Céspedes, Esther Vázquez, Antonio Villaverde, Ramón Mangues, Jan Paul Medema. . Journal of Controlled Release.  Volume 320, 96-104, 2020 https://doi.org/10.1016/j.jconrel.2020.01.019

Controlling self-assembling and tumor cell-targeting of protein-only nanoparticles through modular protein engineering Voltà-Durán, E., Cano-Garrido, O., Serna, N. et al. CSci. China Mater.63, 147–156 (2020). https://doi.org/10.1007/s40843-019-9582-9

Engineering Secretory Amyloids for Remote and Highly Selective Destruction of Metastatic Foci, María Virtudes Céspedes  Olivia Cano‐Garrido  Patricia Álamo  Rita Sala  Alberto Gallardo  Naroa Serna  Aïda Falgàs  Eric Voltà‐Durán  Isolda Casanova  Alejandro Sánchez‐Chardi  Hèctor López‐Laguna  Laura Sánchez‐García  Julieta M. Sánchez  Ugutz Unzueta  Esther Vázquez  Ramón Mangues  Antonio Villaverde . Advanced Materiasls Número de artículo: 1907348 , Dec. 2019 https://doi.org/10.1002/adma.201907348

Artificial Inclusion Bodies for Clinical Development Julieta M. Sánchez  Hèctor López‐Laguna  Patricia Álamo  Naroa Serna  Alejandro Sánchez‐Chardi  Verónica Nolan  Olivia Cano‐Garrido  Isolda Casanova  Ugutz Unzueta  Esther Vazquez  Ramon Mangues  Antonio Villaverde, Advanced Science. 2019 https://doi.org/10.1002/advs.201902420

Nanostructured Nucleolin-Binding Peptide for Intracellular Drug Delivery in Triple-Negative Breast Cancer Stem Cells Mireia Pesarrodona, Laura Sánchez-García, Joaquin Seras-Franzoso, Alejandro Sánchez-Chardi, Ricardo Baltá-Foix, Patricia Cámara-Sánchez, Petra Gener,  José Juan Jara, Daniel Pulido, Naroa Serna, Simó Schwartz Jr. Miriam Royo, Antonio Villaverde, Ibane Abasolo, Esther Vazquez ACS Applied Materials & Interfaces DOI: 10.1021/acsami.9b15803  

Nanostructure Empowers Active Tumor Targeting in Ligand‐Based Molecular Delivery López‐Laguna, H., Sala, R., Sánchez, J. M., Álamo, P., Unzueta, U., Sánchez‐Chardi, A., Serna, N., Sánchez‐García, L., Voltà‐Durán, E., Mangues, R., Villaverde, A., Vázquez, E., . Part. Part. Syst. Charact. 2019, 36, 1900304. https://doi.org/10.1002/ppsc.201900304

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Targeting antitumoral proteins to breast cancer by local administration of functional inclusion bodies

Three units of NANBIOSIS have collaborated in obtaining the research results published in the article “Targeting Antitumoral Proteins to Breast Cancer by Local Administration of Functional Inclusion Bodies” published by Advanced Science

Protein production and DLS have been partially performed by the Unit 1 of ICTS NANBIOSIS Protein Production Platform (PPP) and the Unit 6 NANBIOBIS Biomaterial Processing and Nanostructuring Unit. Biodistribution and immunohistochemistry assays were performed at NANBIOSIS U20 In Vivo Experimental Platform/FVPR

Two structurally and functionally unrelated proteins, namely Omomyc and p31, are engineered as CD44‐targeted inclusion bodies produced in recombinant bacteria. In this unusual particulate form, both types of protein materials selectively penetrate and kill CD44+ tumor cells in culture, and upon local administration, promote destruction of tumoral tissue in orthotropic mouse models of human breast cancer. These findings support the concept of bacterial inclusion bodies as versatile protein materials suitable for application in chronic diseases that, like cancer, can benefit from a local slow release of therapeutic proteins.

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