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CD4+CD25+FOXP3+ Regulatory T Cells In Allogeneic Hematopoietic Cell Transplantation Young-Ho Lee; Muhaimin Rifa'i
Journal of Tropical Life Science Vol. 1 No. 2 (2011)
Publisher : Journal of Tropical Life Science

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Abstract

CD4+CD25+FOXP3+ regulatory T cells (Treg) require activation through the T cell receptor for function. CD4+CD25+FOXP3+ regulatory T cells are believed to be key players of the immune tolerance network and control the induction and effector phase of the immune system. Although these cells require antigen-specific activation, they are generally able to suppress bystander T cell responses once activated. This raises the possibility that antigen-specific Treg may be useful therapeutically by localizing generalized suppressive activity to tissues expressing select target antigens. Treg can exert a potent suppressive effect on immune effector cells reactive to host antigens and prevent graft versus host disease (GVHD) in allogeneic bone marrow transplantation (BMT). Here, we observed that co-transfer of CD4+CD25+FOXP3+ T cells derived from donor type along with the donor bone marrow cells could control GVHD-like reactions by suppressing effectors cells of host responding to the donor hematopoietic compartment, and resulted in prevention of autoimmunity and rejection. We further demonstrate that CD4+CD25+FOXP3+ regulatory T cells can control immune-based morbidity after allogeneic BMT by suppressing the development of granulocytes cells and increasing the level of B cell expression. Keywords : Bone Marrow Transplantation, Regulatory T cells, CD4+CD25+FOXP3+
Expression of IL-17 on Breast Cancer Mice Treated by Combination of Phyllanthus Urinaria and Catharanthus roseus Extract Shofiyah, Aya; M. Sasmito Djati; Muhaimin Rifa'i
The Journal of Experimental Life Science Vol. 12 No. 2 (2022)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2022.012.02.05

Abstract

This study aimed to evaluate the effect of combination Phyllanthus urinaria and Catharanthus roseus in breast cancer mice based on the expression of IL-17. 7,12-Dimethylbenz(α)anthracene (DMBA) was injected intraperitoneally into normal mice at dose 1.5 mg.kg-1 weight to obtain breast cancer mice. Total of 24 experimental mice divided into normal mice (N), breast cancer mice (K), breast cancer mice with cisplatin (C) treatment (5 mg.kg-1 weight), breast cancer mice with combination extract Dose 1 (P. urinaria 500 mg.kg-1 weigt + C. roseus 15mg.kg-1 weight), breast cancer mice with combination extract Dose 2 (P. urinaria 1000 mg.kg-1 weight + C. roseus 75mg.kg-1 weight), and breast cancer with combination extract Dose 3 (P. urinaria 2000 mg.kg-1 weight + C. roseus 375 mg.kg-1 weight). Cheral was given orally for 14 days. The level of IL-17 was evaluated by flow cytometry analysis. The combination can suppress the expression of IL-17 which down regulation of IL-17 indicate a good prognosis for the breast cancer mice, for 6.17% in breast cancer condition to 0.93% with Dose 3 treatment. The combination can be used as immunomodulatory agent in humoral immunity through the regulation of IL-17. Keywords: Breast cancer, Catharanthus roseus, IL-17, Phyllanthus urinaria
A Comparative Profile of Free Radicals, Endogenous Antioxidants, and Cytokines in Mouse Model of Type 1 Diabetes Mellitus Fikriya Novita Sari; Rizky Senna Samoedra; Setyaki Kevin Pratama; Sri Rahayu; Aris Soewondo; Muhaimin Rifa'i
Biotropika: Journal of Tropical Biology Vol. 11 No. 3 (2023)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2023.011.03.04

Abstract

Diabetes mellitus is a metabolic disorder characterized by high blood glucose (hyperglycemia). Hyperglycemia will cause the body to undergo physiological changes such as free radical, antioxidant and inflammation alteration. This research aims to compare the profile of free radicals, endogenous antioxidants, and cytokines in mouse models of type 1 diabetes mellitus (T1DM). Mice were separated into two different groups, normal and diabetic mice groups. The normal group was a group of mice that were not induced to have diabetic conditions, while the diabetic mice group was induced to be diabetic using streptozotocin injection. Blood glucose levels were checked every three days for 14 days, while the immune response was evaluated after 14 days using flow cytometry. Data analysis was done using SPSS software with t-test analysis. This research showed that the increasing ROS represented by MDA would trigger inflammation in T1DM represented by the increasing TNF-alpha along with IFN-gamma and reducing anti-inflammatory cytokines represented by IL-10. Interestingly, SOD expression, which is an endogenous antioxidant, is also increased in the diabetic mice group, and we conclude that it is some sort of adaptive response of the diabetic mice group against the increasing ROS.