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Molecular Evolution of the Drug:H+ Antiporter Family 1 in Pathogenic Candida Species

Molecular Evolution of the Drug:H+ Antiporter Family 1 in Pathogenic Candida Species | iBB | Scoop.it

Candida species colonize different body sites in healthy hosts but these yeasts are also opportunistic pathogens when an alteration in human microbial defenses occur. The high mortality rate of Candida bloodstream infections (candidemia) is related to their ability to develop resistance against multiple antifungal agents. In particular, two drug:H+ antiporters of family 1 (DHA1), Mdr1p and Flu1p, are known to underly the azole-resistance phenotype observed in many C. albicans clinical isolates.

In a recent paper published on the journal Genomics, iBB researchers of the Biological Sciences Research Group (BSRG) identified the whole set of DHA1 proteins encoded in the genomes of 31 hemiascomycetous strains, corresponding to 25 yeast species. Using phylogenetic tree building methodologies and comparative genomic approaches, the evolutionary history of the DHA1 encoding genes in the Hemiascomycetes was reconstructed, revealing that sixteen DHA1 lineages were conserved during pathogenic Candida species evolution. The evolution of C. albicans MDR1 and FLU1 genes and C. dubliniensis, C. tropicalis and C. parapsilosis MDR1 genes was detailed and gene duplication and loss were found to be major driving forces underlying the evolution of the DHA1 genes in Candida species.

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Transnational Cooperation Portugal-Italy

Transnational Cooperation Portugal-Italy | iBB | Scoop.it

FCT and the Consiglio Nazionale delle Ricerche de Itália have recently opened a call for proposals to sponsor exchange of researchers (2015-2016) within the context of common research projects. The call ends on the 30th September.

Miguel Prazeres's insight:

This might be a good opportunity for funding if you have on-going collaborations with Italy. 

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YEASTRACT+ Included in the National Roadmap of Research Infrastructures

YEASTRACT+ Included in the National Roadmap of Research Infrastructures | iBB | Scoop.it

YEASTRACT+, an e-infrastructure for research on gene and genomic regulation in yeasts proposed by the Biological Sciences Research Group (BSRG) of iBB and the Knowledge Discovery and Bioinformatics (KDBIO) Group of INESC-ID, was included in the National Roadmap of Research Infrastructures as a node of the Portuguese Biological Data Network (BioData.pt). BioData.pt is a digital infrastructure in the context of the European consortium ELIXIR that aims at exploiting biological data through its compilation and annotation, together with the creation of formal contexts (ontologies) and informatics tools (databases, algorithms).

YEASTRACT+ envisages the continuous updating and extension of the pre-existing digital structure YEASTRACT (http://www.yeastract.com/), a tool for the analysis and prediction of transcription regulatory associations at the gene and genomic levels in the model eukaryote and microbial cell factory Saccharomyces cerevisiae. Yeastract+ will extend the scope of action of YEASTRACT to different S. cerevisiae strains and other yeasts species of clinical and industrial interest (e.g. Candida glabrata, C. albicans, Zygosaccharomyces baillii).

 

Photo details: methylene blue-stained Saccharomyces sp. yeasts, CDC. 1979, Public domain.

http://phil.cdc.gov/PHIL_Images/14353/14353_lores.jpg.

 

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FCT Fellowships and Grants to Open by End July 2014

FCT Fellowships and Grants to Open by End July 2014 | iBB | Scoop.it

"01.07.14 - The 2014 call for PhD Studentships, PhD Studentships in Industry and Post-doctoral Fellowships will open at the end of July. The call for applications will run to the end of September 2014."

Miguel Prazeres's insight:

Call for PhD and Post-Doc grants will open soon!

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Visiting Scholar From University Castilla-La Mancha

Visiting Scholar From University Castilla-La Mancha | iBB | Scoop.it

Prof. Francisco Morales from the Department of Chemical Engineering and the Environmental and Chemical Technologies Institute (ITQUIMA) of the University of Castilla-La Mancha is currently visiting IST and BERG-IBB (1st July to the 31st July 2014). Francisco is interested in learning about the education activities carried out at IST and about the research being performed in the areas of Wastewater treatment, Anaerobic digestion, Biosolid treatment and Biotreatment of contaminated gas streams. 

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XX Jornadas de Biologia de Leveduras Professor Nicolau van Uden

XX Jornadas de Biologia de Leveduras Professor Nicolau van Uden | iBB | Scoop.it

The XX Jornadas de Biologia de Leveduras Professor Nicolau van Uden were held at IST, from 11 to 12 July 2014. The Organizing Committee was led by researchers from the BSRG-IBB, and included also members from BioFIG and INESC-ID. This edition of the event included more than 100 registered participants, representing the majority of the Portuguese Yeast community, and a few colleagues from Spain and Brazil. It covered hot topics of Yeast Biology and Biotechnology, from Yeast Physiology and Evolution to its applications in Health, Energy, Environmental and Food Biotechnology.

 

Photo details: Van Uden Microbiology Laboratory members and staff, Gulbenkian Institute of Science, 1990.

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Biennial Report: BSRG 2012-2013

 "Biennial report of the activities of the Biological Sciences Research Group of the Institute for Biotechnology and Bioengineering (Lisbon, Portugal), years 2012-2013."

Miguel Prazeres's insight:

The 2012-2013 report of the research activities of the Biologcal Sciences Research Group (BSRG) at iBB is now available on-line - check it out.

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10th International Conference on Data Integration in the Life Sciences

10th International Conference on Data Integration in the Life Sciences | iBB | Scoop.it

"The Tenth International Conference on Data Integration in the Life Sciences 2014 (DILS2014) will be held at Instituto Superior Técnico (IST), Lisbon, Portugal, on July 17-18, 2014. The conference aim is to foster discussion, exchange, and innovation in research and development in the areas of data integration and data management for the life sciences. Researchers and professionals from biology, medicine, computer science and engineering are invited to share their knowledge and experience."

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Novel Capture Step for the Purification of Monoclonal Antibodies

Novel Capture Step for the Purification of Monoclonal Antibodies | iBB | Scoop.it

In a recent paper published on Journal of Chromatography A, researchers working on the Bioseparation Engineering area of BERG, in collaboration with Icosagen Cell Factory, describe the successful development of an alternative capture step for monoclonal antibodies (mAbs) based on a new multimodal ligand, phenyl boronate. The low cost, high stability and selectivity of this synthetic ligand may lead to the implementation of phenyl boronate chromatography as a new platform in the downstream processing of mAbs. Click on title to learn more.

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iBB-IST Proceeds to 2nd Round of FCT Evaluation

iBB-IST Proceeds to 2nd Round of FCT Evaluation | iBB | Scoop.it

The Institute for Bioengineering and Biosciences (IBB) is a research unit at Instituto Superior Técnico, Universidade de Lisboa, aiming at cutting edge research and strategic advanced education in fundamental and applied biological sciences, biotechnology and bioengineering.

Miguel Prazeres's insight:

As a result of the 2013 review of the national R&D institutions organized by the Portuguese Foundation of Science and Technology (FTC), the Institute for Bioenginieering and Biosciences (iBB-IST) has proceeded to the second round of evaluation. This next stage will include an on-site visit by the members of the expert pannel.

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Doctoral Programme on Biotechnology and Biosciences Receives FCT Approval

Doctoral Programme on Biotechnology and Biosciences Receives FCT Approval | iBB | Scoop.it

The Doctoral Programme on Biotechnology and Biosciences, a collaborative effort between IST and iBB has been recently approved by  FCT after peer-review by an international panel of experts.This new FCT PhD programme will enable iBB to expand its research and educational activities, complementing the graduate efforts already in place under the scope of the PhD programs in Bioengineering-MIT Portugal and Bioengineering - Cell Therapies and Regenerative Medicine.

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iBB/MIT Reaserchers Develop a New High-Plasmid Producer E. coli Strain

iBB/MIT Reaserchers Develop a New High-Plasmid Producer E. coli Strain | iBB | Scoop.it

Researchers from BERG-iBB and the Prather lab at MIT developed a pgi gene knockout E. coli strain with the specific goal of producing large amounts of plasmid DNA vectors. The new strain was tested by Nature Technology Corporation in the US, yielding 2100-2200 mg plasmid DNA per L in 14 L bioreactors. The strain may be usefull in the large scale production of plasmid-based gene transfer vectors with application in  gene therapy, DNA vaccination and recombinant protein production by transient transfection. The research was developed under the framework of the MIT-Portugal program and is a direct result of Geisa Gonçalves (in the photo) Ph D. thesis in Bioengineering. Click on title to learn more.

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3D Microarray Platform for Toxicology Assays in Neural Development

3D Microarray Platform for Toxicology Assays in Neural Development | iBB | Scoop.it

In collaboration with Rensselaer Polytechnic Institute (RPI/USA), BERG researchers at the Stem Cell Bioengineering and Regenerative Medicine Laboratory (SCBL) have recently developed a 3D microarray platform to perform high-throughput studies of human Neural Stem Cell (hNSC) Differentiation and Toxicology. By using this platform it is possible to screen for the differential toxicity of small molecules to hNSCs which may help to predict, in vitro, which compounds pose an increased threat to neural development and should therefore be prioritized for further screening and evaluation. The work was published in “Stem Cell Research” journal. Click on title to learn more,

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Doctoral Programme on Applied Environmental Microbiology Receives FCT Approval

Doctoral Programme on Applied Environmental Microbiology Receives FCT Approval | iBB | Scoop.it

The Doctoral Programme on Applied and Environmental Microbiology, a collaborative effort between iBB-IST, Centro de Biologia Molecular e Ambiental (CBMA), Instituto de Tecnologia Química e Biológica (ITQB/UNL), Faculdade de Ciências da Universidade de Lisboa (FC/UL) and Centro de Engenharia Biológica da Universidade do Minho (CEB/UM) has been recently approved by FCT after peer-review by an international panel of experts. With a total of 24 grants, this new FCT PhD programme will enable iBB to expand its research and educational activities, complementing the graduate efforts already in place under the scope of the PhD programs in Bioengineering-MIT Portugal, Bioengineering - Cell Therapies and Regenerative Medicine and Biotechnology and Biosciences.

 

Photo details: 3D computer-generated image of the rod-shaped, drug-resistant Shigella bacteria, Melissa Bower, CDC. 2013, Public domain.

http://phil.cdc.gov/PHIL_Images/16878/16878_lores.jpg.

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BERG Researchers Develop Bioreactor System Mesenchymal Stem Cell Expansion

BERG Researchers Develop Bioreactor System Mesenchymal Stem Cell Expansion | iBB | Scoop.it

"In a recent paper published on Biotechnology and Bioengineering, researchers working on the Stem Cell Bioengineering and Regenerative Medicine area of BERG, in collaboration with Louisiana State University and Life Technology Corporation, describe the successfull establishment of a xenogeneic-free microcarrier-based culture system for bone marrow mesenchymal stem/stromal cells (MSC) and adipose tissue-derived stem/stromal cell (ASC) cultivation. The process, which was developed using a 1L-scale controlled stirred-tank bioreactor, is aimed at generating the large amounts of cells required for MSC-based clinical trials. Click on title to learn more."

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Characterization of the Topography and Wettability of English Weed Leaves and Biomimetic Replicas

Characterization of the Topography and Wettability of English Weed Leaves and Biomimetic Replicas | iBB | Scoop.it

In a recent paper published in Journal of Bionic Engineering, researchers from BERG-IBB studied the topography and wettability of the underside of English weed (Oxalis pes-caprae) leaves using epoxy replicas created via a two-step casting process. Leaves were found to be close to super hydrophobic due to the presence of a characteristic pattern of irregular 100 µm – 200 µm × 60 µm convex papillae. The water repellency properties of such microstructured surfaces may have important applications, including self-cleaning, anti-microbial and anti-fouling.

 

Photo details: SEM image of an epoxy replica of the leaf of English weed. P.M. Pereira, 2013.

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New Release of the YEASTRACT Database

New Release of the YEASTRACT Database | iBB | Scoop.it

Early this year, the newest version of the YEASTRACT database was released in a paper in Nucleic Acids Research, resulting from the effort of a team of researchers from the BSRG/IBB and the KDBIO/INESC-ID. The YEASTRACT information system has been an important tool for thousands of users from the Yeast and Systems Biology communities for the past decade. Its new version offers unprecedented tools for the analysis and prediction of the regulatory control in budding yeast, at gene and genomic levels. Click on title to learn more.

 

Photo details: Yeast cell membrane visualized with RFP and GFP fluorescent markers, Masur, 2006, GNU Free Documentation license.

http://commons.wikimedia.org/wiki/File:Yeast_membrane_proteins.jpg

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Annual Report: BERG 2013

Annual report of the activities of the Bioengineering Research Group of the Institute for Biotechnology and Bioengineering (Lisbon, Portugal), year 2013.
Miguel Prazeres's insight:

The 2013 report of the research activities of the Bioengineering Research Group (BERG) at iBB is now available on-line - check it out.

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Portugal Joins Leading European Bioinformatics Research Infrastructure

Portugal Joins Leading European Bioinformatics Research Infrastructure | iBB | Scoop.it

"The goal of ELIXIR, the European Life-Science Infrastructure for Biological Information, is to operate and manage collections of large amounts of biological data produced in the life sciences. ELIXIR integrates research data from around Europe and makes it available to all scientists, in all research fields, thus facilitating new discoveries and advances in key areas such as medicine, agriculture, biotechnology and the environment."

 

Photo details: Mouse cDNA Microarray, National Cancer Institute, Public Domain. http://commons.wikimedia.org/wiki/File:Mouse_cdna_microarray.jpg

Weronika's curator insight, April 3, 2022 2:49 AM
ELIXIR integrates research data from around Europe and makes it available to all scientists
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4th International Conference on Bio-Sensing Technology, 10-13 May 2015, Lisbon

4th International Conference on Bio-Sensing Technology, 10-13 May 2015, Lisbon | iBB | Scoop.it

The 4th International Conference on Bio-Sensing Technology will continue to bring together leaders from industry and academia to exchange and share their experiences, present research results, explore collaborations, with the aim of developing new projects and exploiting new technology for bio-sensing applications.

Miguel Prazeres's insight:

Conference will take place at the Sheraton Lisboa Hotel & Spa (10 minutes walking distance from iBB-IST) -an excellent opportunity to present the research made at iBB in the biosensors area. 

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Nature Journal Retracts Stem Cell Paper Citing 'Critical Errors'

Nature Journal Retracts Stem Cell Paper Citing 'Critical Errors' | iBB | Scoop.it

"A stem cell paper published by a team of Japanese and American scientists in the influential journal Nature has been retracted due to "several critical errors", the journal said on Wednesday. The research, which when published in January was described as game-changing by many experts in the field, was subsequently investigated by Japan's RIKEN scientific institute, which "categorised some of the errors as misconduct", Nature said. The paper, led at RIKEN by Japanese researcher Haruko Obokata, detailed simple ways to reprogram mature animal cells back to an embryonic-like state, allowing them to generate many different types of cells." 

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ESBES-IFIBiop 2014

ESBES-IFIBiop 2014 | iBB | Scoop.it
Miguel Prazeres's insight:

The 10th European Symposium on Biochemical Engineering Sciences and the 6th International Forum on Industrial Bioprocesses will take place in Lille, from the 7th to the 10 th September. Several IBB members (Raquel Aires-Barros, Ana M Azevedo, Carla Carvalho, Filipe Carvalho, Daniel Silva, Joana Carmelo, Tiago Dias, Ruben Soares) will be presenting their latest research findings in this prestigeous conference.

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