Maria Letizia Di Martino
Researcher Docent at Department of Medical Biochemistry and Microbiology; Infection and Immunity; Mikael Sellin
- E-mail:
- ml.dimartino@imbim.uu.se
- Visiting address:
- BMC
Husargatan 3
752 37 UPPSALA - Postal address:
- Box 582
751 23 UPPSALA
- ORCID:
- 0000-0002-9491-4000
Short presentation
I am an Associate Professor (Docent) at Uppsala University where I lead research at the intersection of bacterial genetics, molecular microbiology, and advanced tissue culture. My work focuses on unraveling the complexities of host-pathogen interactions through cutting-edge intestinal organoid models and functional genomics approaches.
Keywords
- Host–pathogen interactions
- Functional genomics
- Bacterial pathogenesis
- Virulence regulation
- Gut epithelial organoid infection models
- Antimicrobial resistance
- Shigella
- Salmonella
Biography
Degrees and Merits
- 2026 - Associate Professor (Docent) in Microbiology, Uppsala University.
- 2026 - National Scientific Qualification (Abilitazione Scientifica Nazionale - ASN) as Associate Professor (Docent) in the Italian higher education system for the disciplinary field of 06/A3 - MICROBIOLOGY AND CLINICAL MICROBIOLOGY. Validity: From 2026-06-12 to 2038-06-12.
- 2024 - National Scientific Qualification (Abilitazione Scientifica Nazionale - ASN) as Associate Professor (Docent) in the Italian higher education system for the disciplinary field of 05/I2 - MICROBIOLOGY. Validity: From 2024-09-16 to 2036-09-16.
- 2011 - PhD in Cell and Developmental Biology, Doctoral thesis in Microbiology - Sapienza University of Rome, Italy.
Grants
- 2023 – 2025 ǀ Carl Tryggers Stiftelse ǀ The fitness landscape of Shigella flexneri at the transition between environmental and host-colonizing lifestyles.
- 2021 ǀ Clas Groschinsky Minnesfond ǀ TraDIShigella: Revealing the Shigella flexneri epithelial invasome in a human enteroid infection model.
- 2020 ǀ ESCMID (European Society for Medical Microbiology and Infectious Diseases) ǀ Revealing the Shigella flexneri epithelial invasome in a human enteroid infection model.
- 2019 – 2021 ǀ Carl Tryggers Stiftelse ǀ VirF21: a negative regulator of the Shigella life style switching.
- 2014 ǀ Sapienza University of Rome ǀ Training Abroad Postdoctoral Fellowship – Group of Gerhart Wagner, Uppsala University.
- 2013 ǀ FEMS Visiting Postdoctoral Fellowship ǀ Institut Pasteur, Paris, France.
Distinctions and awards
- 2017 ǀ Giovanni Magni Award 2017 for the best paper in Molecular Microbiology (Di Martino et al, 2016 – mBio).
- 2012 ǀ SIMGBM - Franco Tatò 2012 Award for the best PhD thesis in General Microbiology.
Research
My research mission is to understand how enteric bacterial pathogens interact with the intestinal epithelium, adapt to the human host, and establish infection. By combining functional genomics, bacterial genetics, human organoid infection models, and clinically relevant circulating strains, I aim to uncover the molecular determinants of host–pathogen interactions, virulence, bacterial fitness, and antimicrobial resistance. Ultimately, I aim to translate this knowledge into innovative strategies to prevent and treat enteric infectious diseases.
Media
Selected resources highlighting my research in bacterial pathogenesis, host–pathogen interactions, and organoid-based infection models:
- https://www.uu.se/en/press/press-releases/2025/2025-06-12-cultured-mini-organs-reveal-the-weapons-of-aggressive-bacteria
- https://www.scilifelab.se/news/mini-intestines-reveal-how-shigella-infects-the-human-gut/
- https://www.helmholtz-hzi.de/en/media-center/newsroom/news-detail/cultured-mini-organs-reveal-the-weapons-of-aggressive-bacteria/
https://www.linkedin.com/in/maria-letizia-di-martino-ba112047/
Google Scholar
https://scholar.google.ch/citations?user=De67mN4AAAAJ&hl=en
ORCID

Publications
Recent publications
-
Part of Gut microbes, 2026
- DOI for Dual screen for gut metabolites suppressing enterobacterial growth and invasiveness reveals structure-activity relationships among anti-infective indoles
- Download full text (pdf) of Dual screen for gut metabolites suppressing enterobacterial growth and invasiveness reveals structure-activity relationships among anti-infective indoles
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Part of Nature Genetics, p. 1730-1741, 2025
- DOI for A scalable gut epithelial organoid model reveals the genome-wide colonization landscape of a human-adapted pathogen
- Download full text (pdf) of A scalable gut epithelial organoid model reveals the genome-wide colonization landscape of a human-adapted pathogen
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Part of Nature Genetics, p. 1730-1741, 2025
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Part of Cell Reports, 2025
- DOI for Maturation of Human Intestinal Epithelial Cell Layers Fortifies the Apical Surface against Salmonella Attack
- Download full text (pdf) of Maturation of Human Intestinal Epithelial Cell Layers Fortifies the Apical Surface against Salmonella Attack
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The pcnB gene sustains Shigella flexneri virulence
Part of PLoS Pathogens, 2025
- DOI for The pcnB gene sustains Shigella flexneri virulence
- Download full text (pdf) of The pcnB gene sustains Shigella flexneri virulence
All publications
Articles in journal
-
Part of Gut microbes, 2026
- DOI for Dual screen for gut metabolites suppressing enterobacterial growth and invasiveness reveals structure-activity relationships among anti-infective indoles
- Download full text (pdf) of Dual screen for gut metabolites suppressing enterobacterial growth and invasiveness reveals structure-activity relationships among anti-infective indoles
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Part of Nature Genetics, p. 1730-1741, 2025
- DOI for A scalable gut epithelial organoid model reveals the genome-wide colonization landscape of a human-adapted pathogen
- Download full text (pdf) of A scalable gut epithelial organoid model reveals the genome-wide colonization landscape of a human-adapted pathogen
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Part of Nature Genetics, p. 1730-1741, 2025
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Part of Cell Reports, 2025
- DOI for Maturation of Human Intestinal Epithelial Cell Layers Fortifies the Apical Surface against Salmonella Attack
- Download full text (pdf) of Maturation of Human Intestinal Epithelial Cell Layers Fortifies the Apical Surface against Salmonella Attack
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The pcnB gene sustains Shigella flexneri virulence
Part of PLoS Pathogens, 2025
- DOI for The pcnB gene sustains Shigella flexneri virulence
- Download full text (pdf) of The pcnB gene sustains Shigella flexneri virulence
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Part of mBio, p. 1-22, 2025
- DOI for Determinants of divergent Salmonella and Shigella epithelial colonization strategies resolved in human enteroids and colonoids
- Download full text (pdf) of Determinants of divergent Salmonella and Shigella epithelial colonization strategies resolved in human enteroids and colonoids
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Part of Nature Communications, 2024
- DOI for A two-step activation mechanism enables mast cells to differentiate their response between extracellular and invasive enterobacterial infection
- Download full text (pdf) of A two-step activation mechanism enables mast cells to differentiate their response between extracellular and invasive enterobacterial infection
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Part of Chemical Science, p. 5291-5301, 2023
- DOI for Chemoselective bicyclobutane-based mass spectrometric detection of biological thiols uncovers human and bacterial metabolites
- Download full text (pdf) of Chemoselective bicyclobutane-based mass spectrometric detection of biological thiols uncovers human and bacterial metabolites
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Part of FEMS Microbiology Letters, 2022
- DOI for The VirF(21):VirF(30) protein ratio is affected by temperature and impacts Shigella flexneri host cell invasion
- Download full text (pdf) of The VirF(21):VirF(30) protein ratio is affected by temperature and impacts Shigella flexneri host cell invasion
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Part of Molecular Microbiology, p. 1156-1172, 2022
- DOI for A motile doublet form of Salmonella Typhimurium diversifies target search behavior at the epithelial surface
- Download full text (pdf) of A motile doublet form of Salmonella Typhimurium diversifies target search behavior at the epithelial surface
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Part of mBio, 2021
- DOI for Salmonella enterica Serovar Typhimurium Exploits Cycling through Epithelial Cells To Colonize Human and Murine Enteroids
- Download full text (pdf) of Salmonella enterica Serovar Typhimurium Exploits Cycling through Epithelial Cells To Colonize Human and Murine Enteroids
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Bacterial detection by NAIP/NLRC4 elicits prompt contractions of intestinal epithelial cell layers
Part of Proceedings of the National Academy of Sciences of the United States of America, 2021
- DOI for Bacterial detection by NAIP/NLRC4 elicits prompt contractions of intestinal epithelial cell layers
- Download full text (pdf) of Bacterial detection by NAIP/NLRC4 elicits prompt contractions of intestinal epithelial cell layers
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Part of Mucosal Immunology, p. 615-629, 2021
- DOI for Epithelium-autonomous NAIP/NLRC4 prevents TNF-driven inflammatory destruction of the gut epithelial barrier in Salmonella-infected mice
- Download full text (pdf) of Epithelium-autonomous NAIP/NLRC4 prevents TNF-driven inflammatory destruction of the gut epithelial barrier in Salmonella-infected mice
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Salmonella Typhimurium discreet-invasion of the murine gut absorptive epithelium
Part of PLoS Pathogens, 2020
- DOI for Salmonella Typhimurium discreet-invasion of the murine gut absorptive epithelium
- Download full text (pdf) of Salmonella Typhimurium discreet-invasion of the murine gut absorptive epithelium
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Part of mBio, 2019
- DOI for Barcoded Consortium Infections Resolve Cell Type-Dependent Salmonella enterica Serovar Typhimurium Entry Mechanisms
- Download full text (pdf) of Barcoded Consortium Infections Resolve Cell Type-Dependent Salmonella enterica Serovar Typhimurium Entry Mechanisms
Articles, review/survey
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The Intriguing Evolutionary Journey of Enteroinvasive E-coli (EIEC) toward Pathogenicity
Part of Frontiers in Microbiology, 2017
- DOI for The Intriguing Evolutionary Journey of Enteroinvasive E-coli (EIEC) toward Pathogenicity
- Download full text (pdf) of The Intriguing Evolutionary Journey of Enteroinvasive E-coli (EIEC) toward Pathogenicity
Chapters in book
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Part of Bacterial Pathogenesis, p. 295-311, Humana Press, 2023