Degree | Type | Year | Semester |
---|---|---|---|
2500253 Biotechnology | OB | 3 | 2 |
A good knowledge of Microbiology, Biochemistry and Cell Biology and interest in Virology.
1. An introduction to viruses and Virology
The world of viruses. Strict parasitism, multiplication and transmission. The viral disease and the concept of "iceberg". Viral diversity. The viral particle: size, chemical composition, morphology and nomenclature. Functions of the capsid, stability and recognition. Chemical composition, structure and organization of the viral genome: structural and non-structural genes. The polarity of the nucleic acid. The viral cycle: extracellular and intracellular phases. Virus multiplication:
productive and non-productive infection. Sequential expression of viral genes. Viruses, mobile genetic elements and living beings.
2. Historical overview of Virology
Hypotheses about the maintenance of life and spontaneous generation. The work of Pasteur. Microscopic infectious agents and Koch's postulates. The nineteenth century: the discovery of viruses. The tobacco mosaic virus: the concept of "filtrable infectious agent". Discovery of animal viruses. The twentieth century: characterization, chemical and genetic structure of viruses. Significant events in the history of virology. The eradication of smallpox and the risk of re-emergence. Clinical aspects of virology and biotechnology. Bioterrorism.
3. Viral multiplication
Cell recognition. Nature and function of receptors. Internalization. Uncoating. The cellular shutdown. Stimulation of cellular functions: papovavirus and adenovirus. Synthesis of RNA, DNA and viral proteins: temporal sequences. Cytopathic effects. Exit of viral particles with and without lysis. Apoptosis. Cellular transformationin RNA virus: cellular oncogenes,activation and transduction. Cellular transformation in DNA virus: viral oncogenes and oncoproteins. Processing of viral proteins. Targets for antiviral drugs. RNA interference.
4. Viral structure
Morphology of viral particles. Architectural study of viral particles: electron microscopy and three-dimensional reconstructions. X-ray diffraction: level of resolution. Molecular architecture in helical and icosahedral symmetries. Trans-membrane proteins in viral envelopes. Receptor binding sites. Viral antigens and epitopes B and T. Neutralization and neutralization evasion. Genetic and epitope variability. Other structural components of viruses.
5. Viral genomes and genetics
Diversity of viral genomes. Principle of economy and complexity of viral genomes; overlapping genes. Segmented and split genomes. Information encoding the viral genome. Types of viral genomes and gene expression and replication strategy for each type; temporal regulation strategies. The infectious clone. Principles of reverse genetics. Defective viruses.
6. Origin and evolution of viruses
Origin of viruses and regressive theories for a cellular origin. Mechanisms of generation of diversity. Mutation frequencies and relative abundance of mutants. Fixation of mutations. Viral replicases and copying fidelity. Variability and evolution in RNA viruses and retroviruses. The viral quasispecies. Evolutionand evolutionary potential. Darwinian selection and Darwinian mutations. Founding effects and bottlenecks. Genetic and antigenic divergence, the influenza virus.
7. Emerging viruses and viral diseases
Emergence of new viral diseases. Host jump and viral reservoirs. Viral emergence and viral re-emergence. Environmental factors, social and technological factors. Importance of arthropod vectors. The human species as a terminal host. New emerging viruses and human viruses. Hemorrhagic fevers. The Ebola virus and human immunodeficiency virus. The continuing re-emergence of influenza virus and others. Thevirome.
8. Methods in Virology
Obtaining viral particles. Cell culture. Small and medium scale cultures. Purification. Quantitative and qualitative analysis of viral particles. Detection of viral components and applications in diagnostic methodology. The Virology laboratory: areas and distribution. Biological safety. Containment levels: P1 to P4. Air treatment. Effluent treatment.
9. Viral taxonomy
First virus classifications: Baltimore classification of animal viruses. The International Committee on Taxonomy of Viruses and the classification system. Viral properties used in taxonomy. Families of animal viruses and viruses not yet classified. Nomenclatural changes. The main human pathogens and their diseases.
10. Peculiar infectious agents
The prion: Infectious proteins. Development of the prion concept. The amyloid. Synthesis and processing of PrPc. PrPsc formation and propagation of prions. Spongiform encephalopathies: inheritance and contagion. Phenotypic diversity of prions; strains. The "scrapie" and bovine spongiform encephalopaty. Interspecific barriers. The human spongiform encephalopathies: Kuru, Creutzfeldt-Jakob disease and hereditary diseases. Prions in yeast. Viroids: structure and consistency of domains. Possible pathogenetic mechanisms. The satellites. The hepatitis delta virus. The virophages.
11. Bacteriophages
Use of bacteriophages in molecular genetics and biotechnology. The "Phage Display". The generation of antibodies without immunization and the search for new ligands. Directed molecular evolution. Systems of selection of antiviral drugs: the case of protease inhibitors.
12. Viral pathogenesis
"Good" viruses. Virus-host coexistence. Asymptomatic infections. Characteristics of viral infections. Gates of entry. Transmission routes: horizontal and vertical. Localized and systemic infections. Dissemination. Viremia. Nerve transmission. Target tissues: tropism. Acute and persistent infections. Latent infections. Viral and non-viral factors influencing pathogenesis. Virulence. Evasion of the immune response by the virus. Immunopathology.
13. Responses to viral infection and vaccines
Types of vaccines: attenuated and inactivated. Molecular basis of attenuation. New generation of vaccines. Recombinant vaccines and synthetic peptides. Vaccination with nucleic acids. New vectors in vaccines. SARS-CoV-2 vaccines. Herd immunity. Innate and adaptive immune response. Sentinel cells, complement, inflammation, interferons. Communication between innate and adaptive response. Adaptive immune response: humoral and cellular. The importance of the antiviral cellular immune response. The bacterial immune system Crispr/Cas.
14. Artificial viruses
Viruses as new manipulable nanomaterials. Viral gene therapy: important features and biological risks. Gene therapy products on the market. Artificial viruses as alternatives to viral gene therapy. Types of artificial viruses and biomolecules used. Modular strategies. Selection of virus-inspired functional domains. Examples and applications of artificial viruses.
“*Unless the requirements enforced by the health authorities demand a prioritization or reduction of these contents.”
The subject will be taught through lectures and active learning with activities and scientific cases, in which students acquire skills in bibliographic research, experimental approaches and problem solving. Students will do oral presentations derived from practical work, and teamwork will be encouraged, as well as activities' coordination and rational presentation of work projects and results. It will be focused on methodological aspects as well as in biomedical, biotechnological, pharmacological and nanotecnology applications of virus and derived structures.
“*The proposed teaching methodology may experience some modifications depending on the restrictions to face-to-face activities enforced by health authorities.”
Annotation: Within the schedule set by the centre or degree programme, 15 minutes of one class will be reserved for students to evaluate their lecturers and their courses or modules through questionnaires.
Title | Hours | ECTS | Learning Outcomes |
---|---|---|---|
Type: Directed | |||
Classroom or remote classes | 42 | 1.68 | 1, 2, 3 |
Type: Supervised | |||
Preparing public presentation of projects | 50 | 2 | 5, 4, 6 |
Type: Autonomous | |||
Study | 20 | 0.8 | 5, 4, 6 |
Texts reading | 30 | 1.2 | 5, 4, 6 |
Title | Weighting | Hours | ECTS | Learning Outcomes |
---|---|---|---|---|
Final exam: third partial + synthesis exam. Multiple choice | 40% | 2 | 0.08 | 2, 3 |
Midterm exams multiple choice | 30% | 3 | 0.12 | 1, 2, 3 |
Oral presentations and/or written projects | 30% | 3 | 0.12 | 5, 4, 6 |
A. Granoff and R.G. Webster. (Constantly updated). Encyclopedia of virology (on-line Ed.) Academic Press. London.
(http://www.sciencedirect.com/science/referenceworks/9780123744104)
A. J. Cann. 2015. Principles of molecular virology. (6th Ed). Academic Press. London. (http://www.sciencedirect.com/science/book/9780123849397)
S. J. Flint & others. 2015. 4th Edition. Principles of virology: Molecular biology (volume I), pathogenesis and control (volume II). Digital document at UAB https://ebookcentral-proquest-com.are.uab.cat/lib/uab/reader.action?docID=6037145 (vol I) https://ebookcentral-proquest-com.are.uab.cat/lib/uab/reader.action?docID=6029122 (vol II)
G. Rezza, G. Ippolito, Emerging and Re-emerging Viral Infections: Advances in Microbiology, Infectious Diseases and Public Health Volume6, Springer, 2017. https://mirades.uab.cat/ebs/items/show/153230
P. Tennant, G. Fermin, J.E. Foster, Viruses; molecular biology, host interactions and applications to biotechnology, Academic Press, 2018
S. Howley, D. Knipe, S. Whelan, Fields VIROLOGY- Vol. 1. Emerging Viruses. 7th Edition. Wolters Kluver, 2021
G. Fermin, 2018. Viruses. Elsevier. https://mirades.uab.cat/ebs/items/show/155194
Introduction to Modern Virology By: Nigel J. Dimmock; Keith N. Leppard; Andrew J. Easton. Wiley-Blackwell. 2016 ISBN: 978-1-119-97810-7, 978-1-119-09452-4, 978-1-119-09453-1, 978-1-78785-149-8. Digital book available at the UAB library. http://web.b.ebscohost.com/pfi/ExternalLinkOut/PubFinderLinkOut?sid=ba798d32-9ef9-4158-b465-6dca266b4ad4@sessionmgr103&vid=1&Url=https%3a%2f%2flogin.are.uab.cat%2flogin%3furl%3dhttps%3a%2f%2febookcentral.proquest.com%2flib%2fUAB%2fdetail.action%3fdocID%3d4305725&Kbid=edp8505591&PackageId=2602580&LinkedFrom=PublicationResultList
Clinical Virology Manual, Fifth Edition By: Richard L. Hodinka; Stephen A. Young; Benjamin A. Pinksy; Squarr, J. American Society for Microbiology. 2016 ISBN: 978-1-55581-914-9, 978-1-55581-915-6, 978-1-68367-069-8, 978-1-68367-318-7. Digital book available at the UAB library. http://web.b.ebscohost.com/pfi/ExternalLinkOut/PubFinderLinkOut?sid=ba798d32-9ef9-4158-b465-6dca266b4ad4@sessionmgr103&vid=1&Url=https%3a%2f%2flogin.are.uab.cat%2flogin%3furl%3dhttps%3a%2f%2febookcentral.proquest.com%2flib%2fUAB%2fdetail.action%3fdocID%3d4305725&Kbid=edp8505591&PackageId=2602580&LinkedFrom=PublicationResultList
It is not necessary to use specific programs in this subject.