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  1. Article ; Online: T

    Aguayo-Mazzucato, Cristina / Lee, Terence B / Matzko, Michelle / DiIenno, Amanda / Rezanejad, Habib / Ramadoss, Preeti / Scanlan, Thomas / Zavacki, Ann Marie / Larsen, P Reed / Hollenberg, Anthony / Colton, Clark / Sharma, Arun / Bonner-Weir, Susan

    Diabetes

    2018  Volume 67, Issue 7, Page(s) 1322–1331

    Abstract: Previously, we showed that thyroid hormone (TH) triiodothyronine (T ...

    Abstract Previously, we showed that thyroid hormone (TH) triiodothyronine (T
    MeSH term(s) Animals ; Biomarkers/analysis ; Biomarkers/metabolism ; Cell Differentiation/drug effects ; Cell Differentiation/genetics ; Cells, Cultured ; Cellular Senescence/drug effects ; Cellular Senescence/genetics ; Cyclin-Dependent Kinase Inhibitor p16/genetics ; Cyclin-Dependent Kinase Inhibitor p16/metabolism ; Humans ; Insulin-Secreting Cells/drug effects ; Insulin-Secreting Cells/physiology ; Maf Transcription Factors, Large/genetics ; Maf Transcription Factors, Large/metabolism ; Mice ; Mice, Inbred C57BL ; Rats ; Rats, Sprague-Dawley ; Receptors, Thyroid Hormone/genetics ; Receptors, Thyroid Hormone/metabolism ; Triiodothyronine/pharmacology ; Up-Regulation/drug effects ; Up-Regulation/genetics
    Chemical Substances Biomarkers ; Cyclin-Dependent Kinase Inhibitor p16 ; Maf Transcription Factors, Large ; Mafa protein, mouse ; Receptors, Thyroid Hormone ; Triiodothyronine (06LU7C9H1V)
    Language English
    Publishing date 2018-04-06
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 80085-5
    ISSN 1939-327X ; 0012-1797
    ISSN (online) 1939-327X
    ISSN 0012-1797
    DOI 10.2337/db18-0030
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Polymeric Metal Contrast Agents for T

    Foster, Dorian / Larsen, Jessica

    ACS biomaterials science & engineering

    2023  Volume 9, Issue 3, Page(s) 1224–1242

    Abstract: ... understanding of how the brain works. T ...

    Abstract Imaging plays an integral role in diagnostics and treatment monitoring for conditions affecting the brain; enhanced brain imaging capabilities will improve upon both while increasing the general understanding of how the brain works. T
    MeSH term(s) Contrast Media ; Brain/pathology ; Gadolinium ; Magnetic Resonance Imaging/methods
    Chemical Substances Contrast Media ; Gadolinium (AU0V1LM3JT)
    Language English
    Publishing date 2023-02-08
    Publishing country United States
    Document type Journal Article ; Review
    ISSN 2373-9878
    ISSN (online) 2373-9878
    DOI 10.1021/acsbiomaterials.2c01386
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Sustaining the T-cell activity in xenografted psoriasis skin.

    Christensen, Pernille Kristine Fisker / Hansen, Axel Kornerup / Skov, Søren / Engkilde, Kåre / Larsen, Jesper / Høyer-Hansen, Maria Helena / Koch, Janne

    PloS one

    2023  Volume 18, Issue 1, Page(s) e0278390

    Abstract: ... of-principle of new drug candidates. However, the lack of human T-cell activity in the grafts limits the use ... shown. Thus, despite the sustained T-cell activity, the model needs further investigations and ...

    Abstract Xenografting of psoriasis skin onto immune deficient mice has been widely used to obtain proof-of-principle of new drug candidates. However, the lack of human T-cell activity in the grafts limits the use of the model. Here, we show that xenografting of lesional skin from psoriasis patients onto human IL-2 NOG mice results in increased numbers of human CD3+ cells in the grafts, axillary lymph nodes and blood from human IL-2 NOG mice compared to C.B-17 scid and NOG mice. In addition, disease relevant human cytokine levels were higher in graft lysates and serum from human IL-2 NOG mice. However, the epidermis was lacking and no efficacy of ustekinumab, a human anti-P40 antibody targeting both IL-12 and IL-23, was shown. Thus, despite the sustained T-cell activity, the model needs further investigations and validation to capture more aspects of psoriasis.
    MeSH term(s) Humans ; Mice ; Animals ; Transplantation, Heterologous ; Interleukin-2 ; T-Lymphocytes/pathology ; Skin/pathology ; Psoriasis/pathology
    Chemical Substances Interleukin-2
    Language English
    Publishing date 2023-01-17
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0278390
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Spike-specific T cells are enriched in breastmilk following SARS-CoV-2 mRNA vaccination.

    Armistead, Blair / Jiang, Yonghou / Carlson, Marc / Ford, Emily S / Jani, Saumya / Houck, John / Wu, Xia / Jing, Lichen / Pecor, Tiffany / Kachikis, Alisa / Yeung, Winnie / Nguyen, Tina / Coig, Rene / Minkah, Nana / Larsen, Sasha E / Coler, Rhea N / Koelle, David M / Harrington, Whitney E

    Mucosal immunology

    2023  Volume 16, Issue 1, Page(s) 39–49

    Abstract: Human breastmilk is rich in T cells; however, their specificity and function are largely unknown ... We compared the phenotype, diversity, and antigen specificity of T cells in breastmilk and peripheral blood ... breastmilk contained higher frequencies of T effector and central memory populations that expressed mucosal ...

    Abstract Human breastmilk is rich in T cells; however, their specificity and function are largely unknown. We compared the phenotype, diversity, and antigen specificity of T cells in breastmilk and peripheral blood of lactating individuals who received SARS-CoV-2 messenger RNA (mRNA) vaccination. Relative to blood, breastmilk contained higher frequencies of T effector and central memory populations that expressed mucosal-homing markers. T cell receptor sequence overlap was limited between blood and breastmilk. Overabundant breastmilk clones were observed in all individuals, were diverse, and contained complementarity-determining regions in three sequences with known epitope specificity, including to SARS-CoV-2 spike. SARS-CoV-2 spike-specific T cell receptors were more frequent in breastmilk compared to blood and expanded in breastmilk following a 3
    MeSH term(s) Infant ; Female ; Humans ; Milk, Human ; SARS-CoV-2 ; T-Lymphocytes ; Lactation ; COVID-19 ; Vaccination ; RNA, Messenger ; Antibodies, Viral
    Chemical Substances RNA, Messenger ; Antibodies, Viral
    Language English
    Publishing date 2023-01-13
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2411370-0
    ISSN 1935-3456 ; 1933-0219
    ISSN (online) 1935-3456
    ISSN 1933-0219
    DOI 10.1016/j.mucimm.2023.01.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Prognostic value of early bone marrow MRD status in CAR-T therapy for myeloma.

    Bansal, Radhika / Baksh, Mizba / Larsen, Jeremy T / Hathcock, Matthew A / Dingli, David / Stewart, A Keith / Kapoor, Prashant / Kourelis, Taxiarchis / Hayman, Suzanne R / Warsame, Rahma M / Fonseca, Rafael / Bergsagel, P Leif / Ailawadhi, Sikander / Kumar, Shaji K / Lin, Yi

    Blood cancer journal

    2023  Volume 13, Issue 1, Page(s) 47

    Abstract: ... in multiple myeloma (MM). BM is still hypocellular at month 1 post CAR-T, thus the value of MRD negative (MRDneg ...

    Abstract Bone marrow (BM) assessment of minimal residual disease (MRD) is prognostic for survival in multiple myeloma (MM). BM is still hypocellular at month 1 post CAR-T, thus the value of MRD negative (MRDneg) status at this timepoint is unclear. We examined the impact of month 1 BM MRD status in MM patients who received CART at Mayo Clinic between 8/2016 and 6/2021. Among 60 patients, 78% were BM-MRDneg at month 1; and 85% (40/47) of these patients also had decreased to less than normal level of both involved and uninvolved free light chain (FLC < NL). Patients who achieved CR/sCR had higher rates of month 1 BM-MRDneg and FLC < NL. The rate of sustained BM-MRDneg was 40% (19/47). Rate of conversion from MRDpos to MRDneg was 5%(1/20). At month 1, 38%(18/47) of the BM-MRDneg were hypocellular. Recovery to normal cellularity was observed in 50%(7/14) with a median time to normalization at 12 months (range: 3-Not reached). Compared to Month 1 BM-MRDpos patients, patients who were BM-MRDneg had longer PFS irrespective of BM cellularity [PFS: 2.9 months (95% CI, 1.2-NR) vs. 17.5 months (95% CI, 10.4-NR), p < 0.0001]. Month 1 BM-MRDneg and FLC below normal were associated with prolonged survival. Our data support the continued evaluation of BM early post-CART infusion as a prognostic tool.
    MeSH term(s) Humans ; Multiple Myeloma/therapy ; Bone Marrow ; Prognosis ; Receptors, Chimeric Antigen ; Neoplasm, Residual
    Chemical Substances Receptors, Chimeric Antigen
    Language English
    Publishing date 2023-04-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2600560-8
    ISSN 2044-5385 ; 2044-5385
    ISSN (online) 2044-5385
    ISSN 2044-5385
    DOI 10.1038/s41408-023-00820-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Impact of age and comorbidities on SARS-CoV-2 vaccine-induced T cell immunity.

    Dietz, Lisa Loksø / Juhl, Anna Karina / Søgaard, Ole Schmeltz / Reekie, Joanne / Nielsen, Henrik / Johansen, Isik Somuncu / Benfield, Thomas / Wiese, Lothar / Stærke, Nina Breinholt / Jensen, Tomas Østergaard / Jakobsen, Stine Finne / Olesen, Rikke / Iversen, Kasper / Fogh, Kamille / Bodilsen, Jacob / Petersen, Kristine Toft / Larsen, Lykke / Madsen, Lone Wulff / Lindvig, Susan Olaf /
    Holden, Inge Kristine / Raben, Dorthe / Andersen, Sidsel Dahl / Hvidt, Astrid Korning / Andreasen, Signe Rode / Baerends, Eva Anna Marianne / Lundgren, Jens / Østergaard, Lars / Tolstrup, Martin

    Communications medicine

    2023  Volume 3, Issue 1, Page(s) 58

    Abstract: ... specific CD4 + and CD8 + T cells using activation induced marker assay. This enabled characterization ... of the impact of T cell immunity on breakthrough infections.: Results: We show reduced serological immunity ... and frequency of CD4 + Spike-specific T cells in the oldest age group (≥75 years) and higher Charlson ...

    Abstract Background: Older age and chronic disease are important risk factors for developing severe COVID-19. At population level, vaccine-induced immunity substantially reduces the risk of severe COVID-19 disease and hospitalization. However, the relative impact of humoral and cellular immunity on protection from breakthrough infection and severe disease is not fully understood.
    Methods: In a study cohort of 655 primarily older study participants (median of 63 years (IQR: 51-72)), we determined serum levels of Spike IgG antibodies using a Multiantigen Serological Assay and quantified the frequency of SARS-CoV-2 Spike-specific CD4 + and CD8 + T cells using activation induced marker assay. This enabled characterization of suboptimal vaccine-induced cellular immunity. The risk factors of being a cellular hypo responder were assessed using logistic regression. Further follow-up of study participants allowed for an evaluation of the impact of T cell immunity on breakthrough infections.
    Results: We show reduced serological immunity and frequency of CD4 + Spike-specific T cells in the oldest age group (≥75 years) and higher Charlson Comorbidity Index (CCI) categories. Male sex, age group ≥75 years, and CCI > 0 is associated with an increased likelihood of being a cellular hypo-responder while vaccine type is a significant risk factor. Assessing breakthrough infections, no protective effect of T cell immunity is identified.
    Conclusions: SARS-CoV-2 Spike-specific immune responses in both the cellular and serological compartment of the adaptive immune system increase with each vaccine dose and are progressively lower with older age and higher prevalence of comorbidities. The findings contribute to the understanding of the vaccine response in individuals with increased risk of severe COVID-19 disease and hospitalization.
    Language English
    Publishing date 2023-04-24
    Publishing country England
    Document type Journal Article
    ISSN 2730-664X
    ISSN (online) 2730-664X
    DOI 10.1038/s43856-023-00277-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Response to COVID-19 Vaccination Post-CAR T Therapy in Patients With Non-Hodgkin Lymphoma and Multiple Myeloma.

    Wiedmeier-Nutor, Julia E / Iqbal, Madiha / Rosenthal, Allison C / Bezerra, Evandro D / Garcia-Robledo, Juan Esteban / Bansal, Radhika / Johnston, Patrick B / Hathcock, Matthew / Larsen, Jeremy T / Bergsagel, P Leif / Wang, Yucai / Reeder, Craig B / Leis, Jose F / Fonseca, Rafael / Palmer, Jeanne M / Gysbers, Brianna J / Mwangi, Raphael / Warsame, Rahma M / Kourelis, Taxiarchis /
    Hayman, Suzanne R / Dingli, David / Kapoor, Prashant / Kumar, Shaji K / Durani, Urshila / Villasboas, Jose C / Paludo, Jonas / Bennani, N Nora / Nowakowski, Grzegorz / Ansell, Stephen M / Castro, Januario E / Kharfan-Dabaja, Mohamed A / Lin, Yi / Vergidis, Paschalis / Murthy, Hemant S / Munoz, Javier

    Clinical lymphoma, myeloma & leukemia

    2023  Volume 23, Issue 6, Page(s) 456–462

    Abstract: ... antigen receptor T-cell (CAR T) therapy is now widely used for NHL and MM, but little is known about seroconversion ... antibody levels following COVID-19 vaccination among NHL and MM CAR T therapy recipients. Out of 104 CAR T ... infusions, 19 patients developed known COVID-19 infection post-CAR T. We tested 17 patients that received ...

    Abstract COVID-19 adversely affects individuals with cancer. Several studies have found that seroconversion rates among patients with hematologic malignancies are suboptimal when compared to patients without cancer. Patients with non-Hodgkin lymphoma (NHL) and multiple myeloma (MM) are immunocompromised due to impaired humoral and cellular immunity in addition to prescribed immunosuppressive therapy. Chimeric antigen receptor T-cell (CAR T) therapy is now widely used for NHL and MM, but little is known about seroconversion rates after COVID-19 vaccination among these populations. We evaluated SARS-CoV-2 spike-binding IgG antibody levels following COVID-19 vaccination among NHL and MM CAR T therapy recipients. Out of 104 CAR T infusions, 19 patients developed known COVID-19 infection post-CAR T. We tested 17 patients that received CAR T for antibody spike titers post COVID-19 vaccination, only 29 % (n = 5) were able to mount a clinically relevant antibody response (>250 IU/mL).
    MeSH term(s) Humans ; Multiple Myeloma/drug therapy ; Receptors, Chimeric Antigen ; COVID-19 Vaccines/therapeutic use ; COVID-19/prevention & control ; SARS-CoV-2 ; Lymphoma, Non-Hodgkin ; Antibodies, Viral ; Immunoglobulin G
    Chemical Substances Receptors, Chimeric Antigen ; COVID-19 Vaccines ; Antibodies, Viral ; Immunoglobulin G
    Language English
    Publishing date 2023-03-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2540992-X
    ISSN 2152-2669 ; 2152-2650
    ISSN (online) 2152-2669
    ISSN 2152-2650
    DOI 10.1016/j.clml.2023.03.002
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  8. Article ; Online: CMV Status Drives Distinct Trajectories of CD4+ T Cell Differentiation.

    Zhang, Weiwen / Morris, Anna B / Peek, Erica V / Karadkhele, Geeta / Robertson, Jennifer M / Kissick, Haydn T / Larsen, Christian P

    Frontiers in immunology

    2021  Volume 12, Page(s) 620386

    Abstract: ... the most influential known parameter in shaping an individual's immune system. As such, T cells induced ... indicates that memory T cells developed during past bacterial and viral infection can cross-react ...

    Abstract Cytomegalovirus (CMV) is one of the most commonly recognized opportunistic pathogens and remains the most influential known parameter in shaping an individual's immune system. As such, T cells induced by CMV infection could have a long-term impact on subsequent immune responses. Accumulating evidence indicates that memory T cells developed during past bacterial and viral infection can cross-react with unrelated pathogens, including transplant antigens, and can alter responses to
    MeSH term(s) Abatacept/pharmacology ; Abatacept/therapeutic use ; Adult ; Antigens, CD/metabolism ; Biomarkers ; CD4-Positive T-Lymphocytes/cytology ; CD4-Positive T-Lymphocytes/immunology ; CD4-Positive T-Lymphocytes/metabolism ; Cell Differentiation/immunology ; Cytomegalovirus/immunology ; Cytomegalovirus Infections/genetics ; Cytomegalovirus Infections/immunology ; Cytomegalovirus Infections/metabolism ; Cytomegalovirus Infections/virology ; Cytotoxicity, Immunologic ; Female ; Gene Expression Profiling ; Host-Pathogen Interactions/immunology ; Humans ; Immunologic Memory ; Immunophenotyping ; Immunosuppressive Agents/pharmacology ; Immunosuppressive Agents/therapeutic use ; Lymphocyte Activation/immunology ; Lymphocyte Count ; Male ; Middle Aged ; T-Lymphocyte Subsets/immunology ; T-Lymphocyte Subsets/metabolism
    Chemical Substances Antigens, CD ; Biomarkers ; Immunosuppressive Agents ; Abatacept (7D0YB67S97)
    Language English
    Publishing date 2021-04-15
    Publishing country Switzerland
    Document type Journal Article ; Research Support, N.I.H., Extramural ; 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.2021.620386
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Severe lympho-depletion, abrogated thymopoiesis and systemic EBV positive T-cell lymphoma of childhood, a case.

    Asmussen, Anders / Quintanilla-Martinez, Leticia / Larsen, Martin / Fagerberg, Christina / Bækvad-Hansen, Marie / Juul, Maja Bech / Rewers, Kate / Raaschou-Jensen, Klas / Barnkob, Mike Bogetofte / Møller, Michael Boe / Assing, Kristian

    Leukemia & lymphoma

    2024  Volume 65, Issue 1, Page(s) 118–122

    Abstract: Epstein-Barr virus (EBV) associated T-cell and NK-cell lymphoproliferative diseases are lethal and ... positive T-cell lymphoma of childhood. We report, as novel findings, severe lympho-depletion and abrogation ...

    Abstract Epstein-Barr virus (EBV) associated T-cell and NK-cell lymphoproliferative diseases are lethal and extremely rare in Caucasians. We expand on the clinical, immunological and histogenetic characteristics associated with this second European case (19 years old, previously healthy, Caucasian boy) of systemic EBV positive T-cell lymphoma of childhood. We report, as novel findings, severe lympho-depletion and abrogation of thymopoiesis secondary to severe EBV activation and excessive immune activation. Similar to the first European case, we also detected a somatic missense variant in the proto-oncogene
    MeSH term(s) Male ; Humans ; Young Adult ; Adult ; Herpesvirus 4, Human ; Epstein-Barr Virus Infections/complications ; T-Lymphocytes/pathology ; Lymphoma, T-Cell/etiology ; Lymphoma, T-Cell/genetics ; Lymphoma, T-Cell, Peripheral/pathology ; Lymphoproliferative Disorders/therapy ; Leukopenia
    Language English
    Publishing date 2024-01-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1042374-6
    ISSN 1029-2403 ; 1042-8194
    ISSN (online) 1029-2403
    ISSN 1042-8194
    DOI 10.1080/10428194.2023.2264425
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  10. Article ; Online: A neu(ronal) player joins the T regulatory game.

    Larsen, Samantha B / Naik, Shruti

    Immunity

    2021  Volume 54, Issue 3, Page(s) 404–406

    Abstract: ... modulator of regulatory T (Treg) cells in the intestine. This neuroimmune dialog is further refined ...

    Abstract The enteric nervous system is surfacing as a key regulator of intestinal immunity and a liaison of host-commensal interactions. In this issue, Yan et al. identify neuronal interleukin-6 as a potent modulator of regulatory T (Treg) cells in the intestine. This neuroimmune dialog is further refined by commensal microbiota, which impact the enteric nervous system and consequently the intestinal Treg cell pool.
    MeSH term(s) Enteric Nervous System ; Intestines ; Microbiota ; Symbiosis ; T-Lymphocytes, Regulatory
    Language English
    Publishing date 2021-03-10
    Publishing country United States
    Document type Journal Article ; Comment
    ZDB-ID 1217235-2
    ISSN 1097-4180 ; 1074-7613
    ISSN (online) 1097-4180
    ISSN 1074-7613
    DOI 10.1016/j.immuni.2021.02.016
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