EPIGENETICS AND EPIGENOMICS ELEMENTS

Course objectives

General objectives The course aims to introduce the student to the topic of interactions between the eukaryotic genome and the environment. These interactions are carried out by a multiplicity of molecular mechanisms that allow the organism to respond to environmental stimuli that go, as a whole, under the name of Epigenetics. The student will acquire knowledge regarding: - the various ways in which the eukaryotic genome becomes dynamic to respond to environmental stimuli, thus modulating the levels of gene expression; - the main modifications of DNA and chromatin that are involved in this regulation; - involvement in the epigenetic mechanisms of non-coding RNA; - the main methods of study of epigenetic mechanisms at the level of the single gene and at the genomic level (epigenomics); - specific examples through which the notion of "environment" is detailed (intra- and extra-cellular microenvironment, external environment, behavioral influences). Specific Objectives Knowledge and understanding. The student will acquire the essential concepts and methodologies used for the study of epigenetics and epigenomics. It will also have the opportunity to explore the many different areas in which epigenetic regulation comes into play in the life of all eukaryotic organisms (metabolism, external environment, behavior). Ability to apply knowledge and understanding. Being the course mainly theoretical, the student will acquire the ability to understand and interpret the results of research related to the field of epigenetics and epigenomics. Critical and judgmental skills. The student will acquire the ability to critically evaluate and discuss application aspects, deepening technical articles in the international scientific literature. Ability to communicate what has been learned. The students, in the classroom, will be encouraged to present, in front of their colleagues, a short presentation in powerpoint format concerning an experimental work proposed by the teacher. Ability to continue the study independently in the course of life. The course will provide the scientific and technical knowledge (theoretical level) that constitute a detailed reference framework to be able to independently tackle an experimental learning path within a research laboratory.

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SABRINA DONATELLA SONIA VENDITTI Lecturers' profile

Program - Frequency - Exams

Course program
Organization of the eucharyotic genome. Structure and complexity of eucharyotic genomes. Repeated sequences, polymorphisms. Degree of compaction of DNA: the nucleosome; the 30nm fibre; higher order structures. Chromatin structure and gene activation. Epigenetics. Chromatin dynamics: histone modifications, histone variants, histone code, remodelling machineries. Histone acetyltransferases and deacetylases, histone methyltransferases and demethylases. Biological implications in gene regulation. Transcriptional domains, insulators, LCRs. Class III histone deacetylases: Sirtuins and their roles in the regulation of lifespan in yeast, C. elegans, D. melanogaster, and mammals. Epigenomics in yeast and mammals; genomic distribution of chromatin modifying enzymes and histone modifications, chromatin territories. Epigenetic mechanisms and inhibitors of histone deacetylases in cancer. Gene Silencing: telomeric silencing in yeast and heterochromatization in higher eukaryotes. DNA methylation, CpG islands, DNA methyltransfreases and meDNA binding proteins. Imprinting of X chromosome. Homeotic genes, Polycomb and Trithorax complexes: heterochromatization and gene activation. Long non-coding RNAs: structure, functions, and examples. Epigenetics in development: zygotic asymmetry in mammals; histone modifications in embryonic pre-implant and post-implant phases. Chromatin organization in stem cells, bivalent domains. Regulation of pluripotency and differentiation in embryonic stem cells. Epigenetics of circadian rhythms. Epigenetics and metabolism. Epigenetic mechanisms of parental care and behavior.
Prerequisites
Knowledge of the basic topics of Molecular Biology, with particular attention to the following topics: - Structure of the eukaryotic genome: single copy sequences and repetitive sequences of various orders - Structure of the nucleosome and of chromatin - Structure of the eukaryotic nucleus
Books
M. Romani – Epigenetica - Zanichelli Regarding the organization and composition of the eukaryotic genomes and for the chromatin structure and dynamics, see also the english editions of the following books: B. Lewin – Il Gene – Edizione Compatta – Zanichelli J.D.Watson et al. – Biologia Molecolare del Gene – VII Edizione – Zanichelli L.A. Allison – Fondamenti di Biologia Molecolare - Zanichelli J. Zlatanova and K.E. vanHolde – Biologia molecolare. Struttura e dinamica di genomi e proteomi - Zanichelli
Frequency
Classes will be held twice a week as scheduled according to the calendar. Attending classes is encouraged.
Exam mode
The evaluation will be conducted orally on the topics indicated in the program: 100%.
Lesson mode
During the lesson all the topics of the program will be illustrated. With the support of slides in powerpoint, the general concepts will be described alongside specific examples, related to experimental articles present in the scientifica literature. The lides will be available in Pdf format on the e-learning platform.
SABRINA DONATELLA SONIA VENDITTI Lecturers' profile

Program - Frequency - Exams

Course program
Organization of the eucharyotic genome. Structure and complexity of eucharyotic genomes. Repeated sequences, polymorphisms. Degree of compaction of DNA: the nucleosome; the 30nm fibre; higher order structures. Chromatin structure and gene activation. Epigenetics. Chromatin dynamics: histone modifications, histone variants, histone code, remodelling machineries. Histone acetyltransferases and deacetylases, histone methyltransferases and demethylases. Biological implications in gene regulation. Transcriptional domains, insulators, LCRs. Class III histone deacetylases: Sirtuins and their roles in the regulation of lifespan in yeast, C. elegans, D. melanogaster, and mammals. Epigenomics in yeast and mammals; genomic distribution of chromatin modifying enzymes and histone modifications, chromatin territories. Epigenetic mechanisms and inhibitors of histone deacetylases in cancer. Gene Silencing: telomeric silencing in yeast and heterochromatization in higher eukaryotes. DNA methylation, CpG islands, DNA methyltransfreases and meDNA binding proteins. Imprinting of X chromosome. Homeotic genes, Polycomb and Trithorax complexes: heterochromatization and gene activation. Long non-coding RNAs: structure, functions, and examples. Epigenetics in development: zygotic asymmetry in mammals; histone modifications in embryonic pre-implant and post-implant phases. Chromatin organization in stem cells, bivalent domains. Regulation of pluripotency and differentiation in embryonic stem cells. Epigenetics of circadian rhythms. Epigenetics and metabolism. Epigenetic mechanisms of parental care and behavior.
Prerequisites
Knowledge of the basic topics of Molecular Biology, with particular attention to the following topics: - Structure of the eukaryotic genome: single copy sequences and repetitive sequences of various orders - Structure of the nucleosome and of chromatin - Structure of the eukaryotic nucleus
Books
M. Romani – Epigenetica - Zanichelli Regarding the organization and composition of the eukaryotic genomes and for the chromatin structure and dynamics, see also the english editions of the following books: B. Lewin – Il Gene – Edizione Compatta – Zanichelli J.D.Watson et al. – Biologia Molecolare del Gene – VII Edizione – Zanichelli L.A. Allison – Fondamenti di Biologia Molecolare - Zanichelli J. Zlatanova and K.E. vanHolde – Biologia molecolare. Struttura e dinamica di genomi e proteomi - Zanichelli
Frequency
Classes will be held twice a week as scheduled according to the calendar. Attending classes is encouraged.
Exam mode
The evaluation will be conducted orally on the topics indicated in the program: 100%.
Lesson mode
During the lesson all the topics of the program will be illustrated. With the support of slides in powerpoint, the general concepts will be described alongside specific examples, related to experimental articles present in the scientifica literature. The lides will be available in Pdf format on the e-learning platform.
  • Lesson code1035095
  • Academic year2025/2026
  • CourseBiotechnology and Genomic for Industry and Environment
  • CurriculumSingle curriculum
  • Year2nd year
  • Semester1st semester
  • SSDBIO/11
  • CFU6