Email:
afrancioso@unite.it
Telefono: -
Dipartimento di appartenenza: BIOSCIENZE E TECNOLOGIE AGRO-ALIMENTARI E AMBIENTALI
Professional Experience
11/2022 – to date
Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, Italy. Assistant Professor in Biological Chemistry
06/2022 – 11/2022
Visiting Professor with the International program “Tomas de Iriarte”; Instituto Universitario de Bio-Orgánica “Antonio González”, University of La Laguna, Tenerife, Spain
06/2021 – 05/2022
Department of Biochemical Sciences "A. Rossi Fanelli" Sapienza University of Rome, Italy-International Be-for-ERC post-doctoral fellowship. Project acronym: SulPhenOx
01/2021 – to 03/2021
Instituto Universitario de Bio-Orgánica “Antonio González”, University of La Laguna, Tenerife, Spain – FEBS grant.
06/2020 – to 05/2021
Department of Biochemical Sciences "Rossi A. Fanelli" Sapienza University of Rome, Italy- Post-doctoral fellowship. Title of the project: "Purification of natural bioactive compounds through a green chemistry approach"
01/2020 – 04/2020
Instituto Universitario de Bio-Orgánica “Antonio González”, University of La Laguna, Tenerife, Spain – EMBO grant.
12/2018 – 12/2019
Department of Biochemical Sciences "Rossi A. Fanelli" Sapienza University of Rome, Italy- Post-doctoral fellowship. Title of the project: "Chemistry and biological activity of organic natural compounds and sulfur-containing metabolites in cellular models of neurodegeneration"
11/2017 – 11/2018
Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry (IPB-Halle), Halle (Saale), Germany-Leibniz-DAAD post-doctoral fellowship. Title of the project: "Metabolomics-based Elucidation of the Bioactive Principles of Endemic Cuban Medicinal Plants"
02/2017 - 11/2017
Department of Biochemical Sciences "Rossi A. Fanelli" Sapienza University of Rome, and "GNOSIS" S.p.a.- Post-doctoral research project: "Analytical investigations on glutathione thioester derivatives and determination of S-Adenosylmethionine in human plasma"
01/2016 – 01/2017
Department of Biochemical Sciences "Rossi A. Fanelli" Sapienza University of Rome, Italy- Post-doctoral fellowship (FILAS project): "Chemical and biological studies on β-hexachlorocyclohexane, a persistent environmental pollutant of Valle del Sacco (ITALY)"
11/2015-11/2017
Department of Biochemical Sciences "Rossi A. Fanelli" Sapienza University of Rome, Italy- Teaching assistant of molecular biology exercises for high school students in "Bioform project 2015-2017" (Foundation for the Advancement of Research in Molecular Medicine - ONLUS)
03/2015- 09/2015
Faculty of Biology, Department of Plant Biology, University of Havana, Cuba - Visiting scientist: Genotoxicity and mutagenicity of 2,4,6-trihydroxyphenantrene; Extraction and characterization of natural products from endemic tropical flora
11/2012- 11/2015
Sapienza University of Rome, Italy- Teaching assistant of Biochemistry at the Department of Biochemical Sciences
10/2010- 10/2012
Pharmaceutical company "NOOS" S.r.l.- Consultant for antioxidants and natural products development
Education
2014/2015
PhD in Biochemistry, “Sapienza” University of Rome
2011/2012
MSc in Pharmaceutical Biotechnology, “Sapienza” University of Rome
Results: 110 /110 cum laude
Prizes and Awards received.
- “Maria Zambrano” International Talents 2022, University of La Laguna, Spain (Ministry of Science and Innovation, Government of Spain)
- “Tomas de Iriarte” Visiting Professor grant 2022, University of La Laguna, Spain
- Be-for ERC grant 2021, “Sapienza” University of Rome, Italy (€ 50000)
- Federation of European Biochemical Societies FEBS grant 2021 (€ 5700)
- Seal of Excellence 2020: Marie Skłodowska-Curie actions (MSCA) in Horizon 2020 (European Commission)
- European Molecular Biology Organization EMBO Research grant 2019 (€ 6000).
- Sapienza Ateneo Starting Grant 2019 – 2020 - 2021. “Sapienza” University of Rome, Italy (€ 2000 each)
- Leibniz-DAAD Research Fellowship 2017-18: University of Halle, Germany (€ 24000).
- FILAS research grant 2016. Regione Lazio, Italy (€ 19000)
- Best Poster presentation” award at BeMM (Biology and Molecular Medicine) PhD Symposium 2015 “Sapienza” University of Rome, Italy
- Sapienza Ateneo Starting Grant 2015. “Sapienza” University of Rome, Italy (€ 2000)
- Sapienza Ateneo Starting Grant 2014. “Sapienza” University of Rome, Italy (€ 2000)
- “Graduated Excellent” AWARD 2013 from the Dean of “Sapienza” University of Rome, Italy
- Scholarship 2012 “Sapienza” University of Rome. Faculty of Pharmacy and Medicine (€ 1095).
Memberships of scientific societies and editorial activity
- Member of the Italian Society of Biochemistry (SIB)
- Member of the Italian Society of Chemistry (SCI)
- Topic editor for the scientific journal Seaparations MDPI. Editor for the Special issue “Isolation, Determination and Analysis of Bioactive Natural Sulfur Compounds”
- Guest editor for the scientific journal Molecules MDPI. Editor for the Special issue “Resveratrol News & Views: From the Molecular Mechanism to Nutritional and Biomedical Applications”
Teaching activity
- Member of the Teaching Board of the PhD Doctoral Course in "Molecular and Cellular Biotechnologies", Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo.
- Member of the Quality Assurance Commission of Degree Course B.Sc. in “Biotechnology”, Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo.
- From a.a. 2022/2023: Course “Structural and Functional Biochemistry” in the B.Sc. “Biotechnology”, Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo
- From a.a. 2022/2023: Course “Molecular biomarkers in sustainable crop production” in the B.Sc. “Sustainable Intensification Of Quality Horticultural Productions”, Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo
- Teaching assistant in Biochemistry 2021, Faculty of Pharmacy and Medicine, “Sapienza” University of Rome, Italy
- Professor of Chemistry and Biology, Lyceum High School 2019, Roma (Italy).
- Professor of Science, Lyceum High School 2018. Roma (Italy).
- Analytical Biochemistry of Environmental Pollutants, “Sapienza” University of Rome 2017, Rome, Italy (lesson on request)
- Practical Biochemistry and molecular biology for high school students. “Bioform” project 2015-2017, Rome, Italy (Foundation for the Advancement of Research in Molecular Medicine – ONLUS)
- Laboratory of Biochemical Methodologies 2012-2015. Faculty of Pharmacy and Medicine, Department of Biochemical Sciences “Sapienza” University of Rome, Italy
Research activity
Antonio Francioso interest in the chemistry and biochemistry of natural products led him to investigate in detail the chemical and photochemical properties of the bioactive natural stilbenoid trans-resveratrol (RSV), in particular its photochemical stability and photochemical reaction mechanisms after UV-light irradiation, identifying for the first time the new photochemical reaction product 2,4,6-trihydroxyphenanthrene (THP). During this project Dr. Francioso moved to Cuba at the "Toxicology" group directed by Prof. Angel Lamar-Sanchez (University of Havana, Cuba) to study the possible toxic effects of this newly characterized resveratrol photoproduct (THP), paying particular attention to the genotoxic risk that this product could pose to human health.
The scientific interest on natural product chemistry brought Dr. Francioso to improve significantly the chemical stability of trans-resveratrol by studying the interactions of this stilbene complexed with a modified natural biopolymer, i.e. carboxymethylated (1,3/1,6)-β-D-glucan (CMG). RSV/CMG association was also evaluated for its biological potential, in particular for its antiviral activity and this new formulation was patented by the research group of Sapienza University of Rome (EP2674155B1). These investigations carried out during the PhD, conceived in full autonomy by Dr. Francioso and conducted in collaboration with different research groups, have been published in high-impact international scientific journals (Org. Chem. 2014,79, 93814; Med. Chem. 2014, 10:237-45;J. Agric. Food Chem. 2014,62:1520–15255; Bioorg. Med. Chem.2015,23: 8, 1671-1683; Antiviral Res. 2015,123, 15-21; Int. J. Mol. Sci. 2017,18(9), 2006; Int. J. Mol. Sci. 2017,18(5), 967; Phytochem. Lett. 2019, 30: 362-366).
Dr. Francioso carried out a scientific project titled: "Metabolomics-based Elucidation of the Bioactive Principles of Endemic Cuban Medicinal Plants” in the context of a Leibniz-DAAD 2017 grant of which he was holder (2017-2018) at the Department of Bioorganic Chemistry of the Leibniz-IPB institute in Halle (Saale), Germany. In collaboration with the group of Prof. Dr. Ludger Wessjohann, Dr Francioso studied the endemic medicinal tropical flora of Cuba and was able to isolate and fully characterize the chemical structure of a novel bioactive natural compound by means of advanced spectrometric techniques. This novel natural product is the major component of Phyllanthus orbicularis medicinal plant and was tested for its anti-inflammatory capacity showing promising pharmacological potential in human monocytes. The new compound, (2R,3R)-(−)-3’,4´,5,7-tetrahydroxydihydroflavonol-8-C-β-D-glucopyranoside (named Fideloside), is a C-glycosyl dihydroflavonol and its discovery represents a very important outcome in the field of phytochemistry and more in general of natural products chemistry. C-linked glycosides, as well as the enzymes involved in their metabolism (C-glycosyltranferases and C-glycosidases), are extremely rare in nature and absent in human metabolism. These features can confer to the molecule a unique pharmacological profile and possible applications in different fields. These modifications of plant secondary metabolites are biochemically and evolutionally not well studied and characterized. Enzymes involved in C-glycosyl bond formation are very little known and only small amounts of C-glycosides are formed as byproduct of O-glycosylation. The elucidation of this new peculiar product from the Cuban endemic Phyllanthus orbicularis can represent a starting point for the study and characterization of novel enzymes involved in C-glycosyl phenolics biosynthesis (Molecules 2019,24 (15), 2855).
Dr Francioso focused his scientific interest also on organic compounds from natural sources other than plants. He studied and characterized the chemical structures of Volatile organic compounds (VOCs) present in the secretion of particular ants belonging to the genus Tapinoma (Dolichoderinae). VOCs are essential for chemical communication in social insects. Ants, for instance, represent a compelling model not only to deal with exocrine products and their ecological functions, but also to gain further insights into the biosynthesis of different natural products. In their anal glands, Tapinoma (Formicidae: Dolichoderinae) ants are able to synthesize a series of volatile compounds as “chemical weapons”, including iridoids and saturated and unsaturated ketones crucial in self-defence and communication. The reservoir of the anal gland of the living animals contains the raw poison in the liquid state. By opening this reservoir in water, the leaking poison floats and releases a typical odor, which is perceived even by crushing the living worker, and which is called “smell of Tapinoma”. The venom of the newly discovered species Tapinoma Darioi was recently characterized by Dr. Francioso and the main biologically relevant compounds (cyclopentanoids and iridoids) were identified and synthesized in laboratory.
The research investigations of Dr. Francioso are also addressed to another interesting class of metabolites, i.e. Olive oil phenolic secoiridoids and sulfur-containing compounds. Sulfur natural products can play a crucial role in the metabolism of several organisms and are often involved as markers and/or as principal players in different biological conditions. Dr. Francioso studies non-canonical natural sulfur compounds with the aim to isolate and characterize the chemical structures of novel key intermediates in the metabolism of organic sulfur, such as sulfane-sulfur species (“zero-valent” sulfur, S0) and heterocyclic sulfur and nitrogen containing compounds. The scientific research on the chemical evolution and the biochemistry of organic sulfur is an essential field of research that is still unexpolored with respect to the knowledge acquired on the biochemistry of other main chemical elements of living organisms, i.e. carbon, oxygen and nitrogen. In the current scientific context of biochemistry, it is extremely important to gain deeper insight and better understand the role of organic sulfur in the metabolism of different species, given the important role that this element covers in primary and fundamental functions of living beings.
Publications in peer-reviewed scientific journals
Mazzoccanti G, Franzini R, Ciogli A, Pierini M, Buonsenso F, Faggi C, Francioso A, Manetto S, and Villani C (2023): Theoretically Predicted and Experimentally Detected Chirality of Dibenzocyclooctynes and Their Triazole Adducts with Azides. Journal of Organic Chemistry, https://doi.org/10.1021/acs.joc.3c01557. Ranked as Q1 in Organic Chemistry
Mattioli R, Maggiore A, Di Risola D, Federico R, D'Erme M, Francioso A, Mosca L (2023): Natural deep eutectic solvents protect RNA from thermal-induced degradation. Archives of Biochemistry and Biophysics, Volume 745, 1 September 2023, 109714 https://doi.org/10.1016/j.abb.2023.109714. Ranked as Q2 in Biochemistry
*= Corresponding author #= Co-authorship
Peer-reviewed conference proceedings