The Road to Memory: An Early Rest for the Long Journey

Ho, Liam Pock; Yit, Pui San; Ng, Lee Hui; Linn, Yeh Ching; Zhao, Yi; Lee, Sun; Ling, Khoon Lin; Koh, Mickey; Shih, Meng-Chun Monica; Li, Shang; Wang, Xue Ying; Tien, Sim Leng; Goh, Yeow Tee

doi:10.4049/jimmunol.1301175

Cited by 10 publications

(5 citation statements)

References 48 publications

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“…Complex immunophenotyping of the leukocyte composition in the blood can be helpful in the diagnosis and therapy of diseases such as leukemia , lymphomas , autoimmune and infectious diseases and immunodeficiencies such as AIDS . For this purpose, leukocytes labeled with fluorochrome‐conjugated antibodies are identified and quantified using up to 10‐color flow cytometry (FCM).…”

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confidence: 99%

“…In 2011, the Leipzig Research Centre for Civilization Diseases (LIFE) started a prospective population‐based epidemiological study in Leipzig. Within the LIFE study, subjects undergo a comprehensive program including blood sampling, medical examinations, interviews, and questionnaires with the aim to identify risk factors associated with frequent civilization diseases such as diabetes, obesity, and cardiovascular diseases; to find new molecular and cellular biomarkers for early disease diagnosis and to provide new methods for the treatment of these lifestyle diseases.…”

mentioning

confidence: 99%

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Reference intervals for leukocyte subsets in adults: Results from a population‐based study using 10‐color flow cytometry

Melzer

Zachariae

Bocsi

et al. 2015

Cytometry Part B Clinical

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Background: Reference intervals for leukocyte subsets from peripheral blood are helpful for the understanding of disease states and therapy effects.Methods: We performed in-depth immunophenotyping for 608 healthy German adults from the Leipzig region from 40 to 79 years by 10-color flow cytometry (FCM) to gain reference information for various leukocyte subsets including subsets of granulocytes, monocytes and lymphocytes.Results: First, we derived gender-and age-specific reference intervals for males and females from 40 to 59 and from 60 to 79 years, respectively. Second, we further investigated the influence of gender and age on leukocyte counts. We found significantly higher cell counts for monocytes (P < 0.001) and NK cells (P < 0.001) in men, whereas women had higher counts for B cells (P < 0.001), Th cells (P < 0.001) and regulatory T cells (P 5 0.008). Furthermore, with increasing age, a decrease in Tc cells (about 8% within 5 years) and an increase in NK cells (<4% within 5 years) were observed.Conclusion: In future research, it should be investigated whether these are real ageing effects that can be confirmed in longitudinal studies. Furthermore, it is important to understand if the Tc cell count drop is functionally compensated by the increase of NK cells. V C 2015 International Clinical Cytometry Society

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confidence: 99%

mentioning

confidence: 99%

Reference intervals for leukocyte subsets in adults: Results from a population‐based study using 10‐color flow cytometry

Melzer

Zachariae

Bocsi

et al. 2015

Cytometry Part B Clinical

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“…To study the potential role of CD3 + γδTCR + cells after infection, the phenotype of γδT cells was examined. CD127, CD34 and CD62L are T cell activation-associated molecules [21][22][23]. CD34 serves as a ligand for CD62L, CD34 and CD62L primarily regulate the proliferation and migration of leukocytes to in ammatory sites and lymph nodes [21,22].…”

Section: Discussionmentioning

confidence: 99%

Characterization of γδT Cells in Lung of Plasmodium yoelii-infected C57BL/6 Mice

Wei

Jin

Peng

et al. 2020

Preprint

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BackgroundMalaria has high morbidity and mortality rates in most parts of tropical and subtropical countries. The lung not only works as a respiratory organ but also as an immune organ. γδT cells have multiple functions, producing cytokines and chemokines, regulating the immune response by interacting with other cells. It remains unclear about the role of γδT cells in the lung of the mice infected by malaria. MethodsFlow cytometry (FCM) was used to evaluate the changes of γδT cells and the effects of γδT cells on the phenotype and function of B and T cells in Plasmodium yoelii-infected wild-type (WT) or γδTCR knockout (γδT KO) mice. Hematoxylin-eosin (HE) staining was used to observe the pathological changes in the lungs.ResultsThe percentage and absolute number of γδT cells in the lung increased after Plasmodium infection (p < 0.05). The expressions of CD80, CD11b, and PD-1 in the γδT cells increased post-infection (p < 0.05), while the expressions of CD34, CD62L, and CD127 decreased (p < 0.05). γδT cells expressed more IL-4, IL-5, IL-6, IL-21, IL-1α, and IL-17 (p < 0.05), but less IFN-γ (p < 0.05) post-infection. The pathological changes in the lungs of the infected γδT KO mice were not obvious compared with the infected WT mice. The proportion of CD3+ cells, absolute numbers of CD3+ cells, CD3+ CD4+ cells, CD3+ CD8+ cells decreased in γδT KO infected mice (p < 0.05). γδT KO did not make a significant difference in the surface molecular expression of T cells (p > 0.05). While, the percentage of IFN-γ-expressing CD3+ and CD3+ CD8+ cells increased in γδT KO infected mice (p < 0.05). The absolute number of B cells was not affected by γδT KO. The B cells from infected γδT KO mice expressed more ICOS (p < 0.05), but less CD80 (p < 0.05).ConclusionThe content, phenotype, and function of γδT cells in the lung of C57BL/6 mice were changed after Plasmodium infection. γδT cells play a certain role in the process of regulating the immune response of T and B cells in the lung of Plasmodium-infected mice.

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“…Expressing CD62L and CCR7, Naïve T and central memory T cells can home to SLOs. Activated by APCs, effector memory T and effector T cells lose the expression of CD62L and CCR7, emigrate from SLOs into the peripheral inflammatory tissues [46] – [48] . Our results showed that MSCs/CCR7 infusion dramatically made T cells in SLOs less proliferous and cytotoxic.…”

Section: Discussionmentioning

confidence: 99%

CCR7 Expressing Mesenchymal Stem Cells Potently Inhibit Graft-versus-Host Disease by Spoiling the Fourth Supplemental Billingham’s Tenet

Jiang

Sun

et al. 2014

PLoS ONE

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The clinical acute graft-versus-host disease (GvHD)-therapy of mesenchymal stem cells (MSCs) is not as satisfactory as expected. Secondary lymphoid organs (SLOs) are the major niches serve to initiate immune responses or induce tolerance. Our previous study showed that CCR7 guide murine MSC line C3H10T1/2 migrating to SLOs. In this study, CCR7 gene was engineered into murine MSCs by lentivirus transfection system (MSCs/CCR7). The immunomodulatory mechanism of MSCs/CCR7 was further investigated. Provoked by inflammatory cytokines, MSCs/CCR7 increased the secretion of nitric oxide and calmed down the T cell immune response in vitro. Immunofluorescent staining results showed that transfused MSCs/CCR7 can migrate to and relocate at the appropriate T cell-rich zones within SLOs in vivo. MSCs/CCR7 displayed enhanced effect in prolonging the survival and alleviating the clinical scores of the GvHD mice than normal MSCs. Owing to the critical relocation sites, MSCs/CCR7 co-infusion potently made the T cells in SLOs more naïve like, thus control T cells trafficking from SLOs to the target organs. Through spoiling the fourth supplemental Billingham’s tenet, MSCs/CCR7 potently inhibited the development of GvHD. The study here provides a novel therapeutic strategy of MSCs/CCR7 infusion at a low dosage to give potent immunomodulatory effect for clinical immune disease therapy.

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The Road to Memory: An Early Rest for the Long Journey

Cited by 10 publications

References 48 publications

Reference intervals for leukocyte subsets in adults: Results from a population‐based study using 10‐color flow cytometry

Reference intervals for leukocyte subsets in adults: Results from a population‐based study using 10‐color flow cytometry

Characterization of γδT Cells in Lung of Plasmodium yoelii-infected C57BL/6 Mice

CCR7 Expressing Mesenchymal Stem Cells Potently Inhibit Graft-versus-Host Disease by Spoiling the Fourth Supplemental Billingham’s Tenet

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