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Development of a microbial platform for a new L-Asparaginase production

Grant number: 21/01284-9
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): June 01, 2022
Effective date (End): August 31, 2025
Field of knowledge:Biological Sciences - Genetics - Molecular Genetics and Genetics of Microorganisms
Principal researcher:Danielle Biscaro Pedrolli
Grantee:Gabriela Barbosa de Paiva
Home Institution: Faculdade de Ciências Farmacêuticas (FCFAR). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil


Biopharmaceuticals production has grown rapidly in the World. It's predicted the market for therapeutic enzymes will reach $ 6.3 billion by 2021. However, the production and purification process of these biomolecules is still costly. A solution to this problem may be the development of a new strain that generates high production yields and facilitates the extraction and purification process of the biomolecule by exporting it to the extracellular environment. In addition, a standardized platform may be useful for the production of a wide variety of biopharmaceuticals with reduced costs and individual development time. Within this context, this project proposes the development of a standardized platform for the production of biopharmaceuticals, using the bacterium Bacillus subtilis as chassis. As the therapeutic protein, the L-Asparaginase II from Aliivibrio fischeri will be produced. This enzyme has not yet been produced or characterized but has anti-leukemic potential based on its amino acid sequence. In this project, two release systems will be constructed. One of these is the L-Asparaginase II secretion mediated by a signal peptide and the other is the programmed lysis of the bacteria after consumption of the entire carbon source. These systems will be compared and the most efficient will be submitted to a scale up in bioreactors. (AU)

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