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All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences The Journal of Experimental Life Sciences (JELS)
Rifai, Muhaimin
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Medicine & Pharmacology Neuroscience

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CD4+CD25+ T cells maintain homeostasis by promoting TER-119 cell development and inhibiting T cell activation Rifai, Muhaimin
Journal of Tropical Life Science Vol 4, No 1 (2014)
Publisher : Journal of Tropical Life Science

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Abstract

CD4+CD25+ regulatory T cells involved in the regulation of self-tolerance and normality of homeostasis. CD122 deficient mice are model animals that have an abnormal immune system characteristically have a high number of activated T cells and TER-119 cell decreased. Here we showed evidence that the transfer of CD4+CD25+ regulatory T cells derived from normal mice to CD122-defficient neonates prevent the development of activated memory T cells and elicit TER-119 differentiation. Bone marrow reconstitution derived from CD122-/- mice to normal mice resulting tolerance to individual that genetically different. Importantly, CD4+CD25+ regulatory T cells derived from normal mice can replace CD4+CD25+ cells derived from CD122-/- mice. The results of this experiment suggest that regulatory T cells from normal mice exert a critical role in maintaining peripheral tolerance and controlling hematopoietic disorder.
Tapak liman (Elephantopus scaber L) Extract Induced CD4+ and CD8+ Differentiation from Hematopoietic Stem Cell/Progenitor Cell Proliferation of Mice (Mus musculus) Djati, M. Sasmito; Habibu, Hindun; Jatiatmaja, Nabilah A; Rifai, Muhaimin
The Journal of Experimental Life Science Vol. 5 No. 2 (2015)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1487.833 KB) | DOI: 10.21776/ub.jels.2015.005.02.08

Abstract

Tapak liman (Elephantopus scaber L) is one of the traditional medicinal plants, which are containing several active compounds that potentially affecting hematopoietic. The aims of this study are to elucidate the effect of leaf extract of Tapak Liman on hematopoietic in mice BALB/c, by observation on relative number of cells expressing CD4/CD8, CD4/CD62L, and TER119/B220 in the spleen; TER119/B220, TER119/VLA-4 and TER119/CD34 in bone marrow, after given the leaf extract for 2 weeks. This experiment was used 12 female mice, which is divided on 3group treated with leaf extract of Tapak Liman (P1= 0.5 g. g bw-1.day-1, P2= 1.0 g. g bw-1.day-1 and P3 = 2.0 g. g bw-1.day-1) and control. The relative numbers of cells expressing surface molecules were analyzed by flowcytometry and quantitative data were tested using one way ANOVA. The result showed the leaf extract of Tapak Liman has no significant effect on erythrocyte proliferation, on the other hand it have significant effect on both proliferation and differentiation of B lymphocytes (B220+) in the bone marrow (p=0.044) and increase the expression of CD4+, CD8+molecule in B cells (p=0.026) and erytroid (TER119+VLA-4+) in spleen and bone marrow. The administration of 1 g. g bw-1.day-1 of the extract (P2) stimulate proliferation of lymphocytes and erythrocytes lineage (TER119+VLA-4+), in spleen and bone marrow.Keywords: CD4+, CD8+, Elephantopus scaber, erythrocyte, hematopoiesis.
Co-Authors Habibu, Hindun Jatiatmaja, Nabilah A Moch Sasmito Djati