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  1. Article ; Online: SARS-CoV-2: A Glance at the Innate Immune Response Elicited by Infection and Vaccination.

    Manfrini, Nicola / Notarbartolo, Samuele / Grifantini, Renata / Pesce, Elisa

    Antibodies (Basel, Switzerland)

    2024  Volume 13, Issue 1

    Abstract: The COVID-19 pandemic caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has led to almost seven million deaths worldwide. SARS-CoV-2 causes infection through respiratory transmission and can occur either without any symptoms or with ... ...

    Abstract The COVID-19 pandemic caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has led to almost seven million deaths worldwide. SARS-CoV-2 causes infection through respiratory transmission and can occur either without any symptoms or with clinical manifestations which can be mild, severe or, in some cases, even fatal. Innate immunity provides the initial defense against the virus by sensing pathogen-associated molecular patterns and triggering signaling pathways that activate the antiviral and inflammatory responses, which limit viral replication and help the identification and removal of infected cells. However, temporally dysregulated and excessive activation of the innate immune response is deleterious for the host and associates with severe COVID-19. In addition to its defensive role, innate immunity is pivotal in priming the adaptive immune response and polarizing its effector function. This capacity is relevant in the context of both SARS-CoV-2 natural infection and COVID-19 vaccination. Here, we provide an overview of the current knowledge of the innate immune responses to SARS-CoV-2 infection and vaccination.
    Language English
    Publishing date 2024-02-08
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2661514-9
    ISSN 2073-4468 ; 2073-4468
    ISSN (online) 2073-4468
    ISSN 2073-4468
    DOI 10.3390/antib13010013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Human T lymphocytes at tumor sites.

    Notarbartolo, Samuele / Abrignani, Sergio

    Seminars in immunopathology

    2022  Volume 44, Issue 6, Page(s) 883–901

    Abstract: ... ...

    Abstract CD4
    MeSH term(s) Humans ; Lymphocyte Count ; Lymphoid Tissue ; Immunologic Surveillance ; Immunotherapy ; Memory T Cells
    Language English
    Publishing date 2022-11-16
    Publishing country Germany
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 2316828-6
    ISSN 1863-2300 ; 1863-2297
    ISSN (online) 1863-2300
    ISSN 1863-2297
    DOI 10.1007/s00281-022-00970-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Protocol for the detection of defined T cell clones in a heterogeneous cell population

    Andrea Gobbini / Alessandra Bandera / Renata Grifantini / Sergio Abrignani / Samuele Notarbartolo

    STAR Protocols, Vol 5, Iss 1, Pp 102787- (2024)

    1481  

    Abstract: ... please refer to Notarbartolo et al. (2021).1 : Publisher’s note: Undertaking any experimental protocol ...

    Abstract Summary: Identifying defined T cell clones within a polyclonal population is key to clarifying their phenotype and function. Here, we present a protocol for detecting specified T cell clones in a heterogeneous cell population. We describe steps for stimulating human CD4+ T cells isolated from blood with a protein antigen, sorting antigen-specific cells by fluorescence-activated cell sorting, and detecting among these the presence of predefined T cell clones, based on their T cell receptor (TCR). TCR cDNA is amplified through 5′-RACE (TCR-SMART) and detected by qPCR.For complete details on the use and execution of this protocol, please refer to Notarbartolo et al. (2021).1 : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.
    Keywords Bioinformatics ; Cell isolation ; Flow Cytometry ; Gene Expression ; Immunology ; Molecular Biology ; Science (General) ; Q1-390
    Language English
    Publishing date 2024-03-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Editorial: T cell specificity and cross-reactivity - implications in physiology and pathology.

    Latorre, Daniela / Monticelli, Silvia / Wypych, Tomasz P / Aschenbrenner, Dominik / Notarbartolo, Samuele

    Frontiers in immunology

    2024  Volume 15, Page(s) 1385415

    MeSH term(s) T-Cell Antigen Receptor Specificity ; Receptors, Antigen, T-Cell ; Cross Reactions
    Chemical Substances Receptors, Antigen, T-Cell
    Language English
    Publishing date 2024-02-28
    Publishing country Switzerland
    Document type Editorial ; Research Support, Non-U.S. Gov't
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2024.1385415
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Human T lymphocytes at tumor sites

    Notarbartolo, Samuele / Abrignani, Sergio

    Semin Immunopathol. 2022 Nov., v. 44, no. 6, p. 883-901

    2022  , Page(s) 883–901

    Abstract: CD4⁺ and CD8⁺ T lymphocytes mediate most of the adaptive immune response against tumors. Naïve T lymphocytes specific for tumor antigens are primed in lymph nodes by dendritic cells. Upon activation, antigen-specific T cells proliferate and differentiate ...

    Abstract CD4⁺ and CD8⁺ T lymphocytes mediate most of the adaptive immune response against tumors. Naïve T lymphocytes specific for tumor antigens are primed in lymph nodes by dendritic cells. Upon activation, antigen-specific T cells proliferate and differentiate into effector cells that migrate out of peripheral blood into tumor sites in an attempt to eliminate cancer cells. After accomplishing their function, most effector T cells die in the tissue, while a small fraction of antigen-specific T cells persist as long-lived memory cells, circulating between peripheral blood and lymphoid tissues, to generate enhanced immune responses when re-encountering the same antigen. A subset of memory T cells, called resident memory T (TRM) cells, stably resides in non-lymphoid peripheral tissues and may provide rapid immunity independently of T cells recruited from blood. Being adapted to the tissue microenvironment, TRM cells are potentially endowed with the best features to protect against the reemergence of cancer cells. However, when tumors give clinical manifestation, it means that tumor cells have evaded immune surveillance, including that of TRM cells. Here, we review the current knowledge as to how TRM cells are generated during an immune response and then maintained in non-lymphoid tissues. We then focus on what is known about the role of CD4⁺ and CD8⁺ TRM cells in antitumor immunity and their possible contribution to the efficacy of immunotherapy. Finally, we highlight some open questions in the field and discuss how new technologies may help in addressing them.
    Keywords adaptive immunity ; antigens ; blood ; humans ; immune response ; immunotherapy ; lymph ; memory ; monitoring ; neoplasms
    Language English
    Dates of publication 2022-11
    Size p. 883-901
    Publishing place Springer Berlin Heidelberg
    Document type Article ; Online
    Note Review
    ZDB-ID 2316828-6
    ISSN 1863-2300 ; 1863-2297
    ISSN (online) 1863-2300
    ISSN 1863-2297
    DOI 10.1007/s00281-022-00970-4
    Database NAL-Catalogue (AGRICOLA)

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  6. Article ; Online: Protocol for the detection of defined T cell clones in a heterogeneous cell population.

    Gobbini, Andrea / Bandera, Alessandra / Grifantini, Renata / Abrignani, Sergio / Notarbartolo, Samuele

    STAR protocols

    2023  Volume 5, Issue 1, Page(s) 102787

    Abstract: Identifying defined T cell clones within a polyclonal population is key to clarifying their phenotype and function. Here, we present a protocol for detecting specified T cell clones in a heterogeneous cell population. We describe steps for stimulating ... ...

    Abstract Identifying defined T cell clones within a polyclonal population is key to clarifying their phenotype and function. Here, we present a protocol for detecting specified T cell clones in a heterogeneous cell population. We describe steps for stimulating human CD4
    MeSH term(s) Humans ; T-Lymphocytes ; Receptors, Antigen, T-Cell/genetics ; Clone Cells ; Flow Cytometry
    Chemical Substances Receptors, Antigen, T-Cell
    Language English
    Publishing date 2023-12-21
    Publishing country United States
    Document type Journal Article
    ISSN 2666-1667
    ISSN (online) 2666-1667
    DOI 10.1016/j.xpro.2023.102787
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Clonal composition and persistence of antigen-specific circulating T follicular helper cells.

    Hu, Mengyun / Notarbartolo, Samuele / Foglierini, Mathilde / Jovic, Sandra / Mele, Federico / Jarrossay, David / Lanzavecchia, Antonio / Cassotta, Antonino / Sallusto, Federica

    European journal of immunology

    2022  Volume 53, Issue 2, Page(s) e2250190

    Abstract: T follicular helper ( ... ...

    Abstract T follicular helper (T
    MeSH term(s) Humans ; T-Lymphocytes, Helper-Inducer ; T Follicular Helper Cells ; B-Lymphocytes ; Germinal Center ; Receptors, Antigen, T-Cell
    Chemical Substances Receptors, Antigen, T-Cell
    Language English
    Publishing date 2022-12-25
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 120108-6
    ISSN 1521-4141 ; 0014-2980
    ISSN (online) 1521-4141
    ISSN 0014-2980
    DOI 10.1002/eji.202250190
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Tracking the immune response profiles elicited by the BNT162b2 vaccine in COVID-19 unexperienced and experienced individuals.

    Galeota, Eugenia / Bevilacqua, Valeria / Gobbini, Andrea / Gruarin, Paola / Bombaci, Mauro / Pesce, Elisa / Favalli, Andrea / Lombardi, Andrea / Vincenti, Francesca / Ongaro, Jessica / Fabbris, Tanya / Curti, Serena / Martinovic, Martina / Toccafondi, Mirco / Lorenzo, Mariangela / Critelli, Angelica / Clemente, Francesca / Crosti, Mariacristina / Sarnicola, Maria Lucia /
    Martinelli, Manuele / La Sala, Lucia / Espadas, Alejandro / Donnici, Lorena / Borghi, Maria Orietta / De Feo, Tullia / De Francesco, Raffaele / Prati, Daniele / Meroni, Pier Luigi / Notarbartolo, Samuele / Geginat, Jens / Gori, Andrea / Bandera, Alessandra / Abrignani, Sergio / Grifantini, Renata

    Clinical immunology (Orlando, Fla.)

    2024  Volume 261, Page(s) 110164

    Abstract: Multiple vaccines have been approved to control COVID-19 pandemic, with Pfizer/BioNTech (BNT162b2) being widely used. We conducted a longitudinal analysis of the immune response elicited after three doses of the BNT162b2 vaccine in individuals who have ... ...

    Abstract Multiple vaccines have been approved to control COVID-19 pandemic, with Pfizer/BioNTech (BNT162b2) being widely used. We conducted a longitudinal analysis of the immune response elicited after three doses of the BNT162b2 vaccine in individuals who have previously experienced SARS-CoV-2 infection and in unexperienced ones. We conducted immunological analyses and single-cell transcriptomics of circulating T and B lymphocytes, combined to CITE-seq or LIBRA-seq, and VDJ-seq. We found that antibody levels against SARS-CoV-2 Spike, NTD and RBD from wild-type, delta and omicron VoCs show comparable dynamics in both vaccination groups, with a peak after the second dose, a decline after six months and a restoration after the booster dose. The antibody neutralization activity was maintained, with lower titers against the omicron variant. Spike-specific memory B cell response was sustained over the vaccination schedule. Clonal analysis revealed that Spike-specific B cells were polyclonal, with a partial clone conservation from natural infection to vaccination. Spike-specific T cell responses were oriented towards effector and effector memory phenotypes, with similar trends in unexperienced and experienced individuals. The CD8 T cell compartment showed a higher clonal expansion and persistence than CD4 T cells. The first two vaccinations doses tended to induce new clones rather than promoting expansion of pre-existing clones. However, we identified a fraction of Spike-specific CD8 T cell clones persisting from natural infection that were boosted by vaccination and clones specifically induced by vaccination. Collectively, our observations revealed a moderate effect of the second dose in enhancing the immune responses elicited after the first vaccination. Differently, we found that a third dose was necessary to restore comparable levels of neutralizing antibodies and Spike-specific T and B cell responses in individuals who experienced a natural SARS-CoV-2 infection.
    MeSH term(s) Humans ; COVID-19/prevention & control ; BNT162 Vaccine ; SARS-CoV-2 ; Pandemics ; Vaccines ; Vaccination ; Antibodies, Neutralizing ; Antibodies, Viral
    Chemical Substances BNT162 Vaccine ; Vaccines ; Antibodies, Neutralizing ; Antibodies, Viral
    Language English
    Publishing date 2024-02-28
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1459903-x
    ISSN 1521-7035 ; 1521-6616
    ISSN (online) 1521-7035
    ISSN 1521-6616
    DOI 10.1016/j.clim.2024.110164
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Publisher Correction: An immunoregulatory and tissue-residency program modulated by c-MAF in human T

    Aschenbrenner, Dominik / Foglierini, Mathilde / Jarrossay, David / Hu, Dan / Weiner, Howard L / Kuchroo, Vijay K / Lanzavecchia, Antonio / Notarbartolo, Samuele / Sallusto, Federica

    Nature immunology

    2018  Volume 20, Issue 1, Page(s) 109

    Abstract: In the version of this article initially published, in the legend to Fig. 1b, the description of the frequency of ... ...

    Abstract In the version of this article initially published, in the legend to Fig. 1b, the description of the frequency of T
    Language English
    Publishing date 2018-11-07
    Publishing country United States
    Document type Journal Article ; Published Erratum
    ZDB-ID 2016987-5
    ISSN 1529-2916 ; 1529-2908
    ISSN (online) 1529-2916
    ISSN 1529-2908
    DOI 10.1038/s41590-018-0264-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: An immunoregulatory and tissue-residency program modulated by c-MAF in human T

    Aschenbrenner, Dominik / Foglierini, Mathilde / Jarrossay, David / Hu, Dan / Weiner, Howard L / Kuchroo, Vijay K / Lanzavecchia, Antonio / Notarbartolo, Samuele / Sallusto, Federica

    Nature immunology

    2018  Volume 19, Issue 10, Page(s) 1126–1136

    Abstract: Different types of effector and memory T lymphocytes are induced and maintained in protective or pathological immune responses. Here we characterized two human ... ...

    Abstract Different types of effector and memory T lymphocytes are induced and maintained in protective or pathological immune responses. Here we characterized two human CD4
    MeSH term(s) Chemotaxis, Leukocyte/immunology ; Gene Expression Regulation/immunology ; Humans ; Inflammation/immunology ; Interleukin-10/biosynthesis ; Interleukin-10/immunology ; Proto-Oncogene Proteins c-maf/immunology ; Proto-Oncogene Proteins c-maf/metabolism ; T-Lymphocyte Subsets/immunology ; T-Lymphocyte Subsets/metabolism ; Th17 Cells/immunology ; Th17 Cells/metabolism
    Chemical Substances IL10 protein, human ; MAF protein, human ; Proto-Oncogene Proteins c-maf ; Interleukin-10 (130068-27-8)
    Language English
    Publishing date 2018-09-10
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2016987-5
    ISSN 1529-2916 ; 1529-2908
    ISSN (online) 1529-2916
    ISSN 1529-2908
    DOI 10.1038/s41590-018-0200-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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