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Gynura procumbens Ethanolic Extract Promotes Lymphocyte Activation and Regulatory T Cell Generation In Vitro Dwijayanti, Dinia Rizqi; Rifa'i, Muhaimin
Journal of Tropical Life Science Vol 5, No 1 (2015)
Publisher : Journal of Tropical Life Science

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Immune system is a system of biological structures and processes within organism directed to protect against invaded pathogen. Cellular and humoral immune system mediated by immunocompetent cells such as CD4+ T cells, CD8+ T cells, CD4+CD25+ T cells, and B220 cells play important role for maintaining immunological surveillance. The purpose of this study was to determine the effect of ethanolic extract ofÂ G. procumbens leaves (EEGL) on the profile of CD4+ T cells, CD4+CD25+ T cells, and B220+ cells. Splenic cells were isolated from BALB/c mice and cultured in RPMI1640 medium in the presence of EEGL. After 4 days of incubation, cells were harvested, stained with antibodies and analyzed by flow cytometer. The data were analyzed by one-way ANOVA with Î±= 0.05 and Tukey test using SPSS 16.0 for windows. The results showed that the extract ofÂ G. procumbens could increase proliferation of CD4+CD62L T cell, CD4+CD25+T cells, and B220+ cells compared to the control. Here, we showed the biological effect of G. procumbensas medicinal herb with immunomodulatory activity andthe dose of 0.1 Âµg/ml and 1.0 Âµg/ml could promote T cell activation compared to the highest dose of 10 Âµg/ml. In terestingly, the dose of 10 Âµg/ml rather promote than inhibit B cell proliferation.

ELEPHANTOPUS SCABER AND SAUROPUS ANDROGYNUS REGULATE MACROPHAGES AND B LYMPHOCYTE CELLS DURING SALMONELLA TYPHI INFECTION Muhammad Sasmito Djati; Dinia Rizqi Dwijayanti; Lulut Dwi Nurmamulyosari; Yayu Fuadah; Muhammad Basyarudin; Nur Jannah
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Abstract—Macrophages and B lymphocyte play an important role as the first cell type to encounter bacterial pathogen and as a mediator that initiate the adaptive immune response. Those types of cell can die in many ways such as apoptosis, necrosis, pyroptosis and autophagy during the host cell-pathogen recognition. This study aimed to investigate the ability of E. scaber and S. androgynus formula in regulating macrophage and B lymphocyte cells during bacterial infection. The pregnant mice were randomly divided into seven experimental groups: T1 (control), T2 (S. typhi infection), T3 (S. typhi, E. scaber 100%), T4 (S. typhi, E. scaber 75% and S. androgynus 25%), T5 (S. typhi, E. scaber 50% and S. androgynus 50%), T6 (S. typhi, E. scaber 25% and S. androgynus 75%), and T7 (S. typhi, S. androgynus 100%). Flowcytometry analysis was performed on day 18. S. typhi infection decrease the formation of macrophage and B lymphocyte cells in bone marrow and induce cell death in PBMC. We clearly proved that E. scaber 75% and S. androgynus 25% formula was able to ameliorate the formation of macrophage and B lymphocyte cells in BM. While E. scaber 25% and S. androgynus 75% formula increased the relative number of macrophage and B lymphocyte cells in PBMC.

Gynura procumbens Ethanolic Extract Promotes Lymphocyte Activation and Regulatory T Cell Generation In Vitro Dinia Rizqi Dwijayanti; Muhaimin Rifa'i
Journal of Tropical Life Science Vol. 5 No. 1 (2015)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar

Immune system is a system of biological structures and processes within organism directed to protect against invaded pathogen. Cellular and humoral immune system mediated by immunocompetent cells such as CD4+ T cells, CD8+ T cells, CD4+CD25+ T cells, and B220 cells play important role for maintaining immunological surveillance. The purpose of this study was to determine the effect of ethanolic extract ofÂ G. procumbens leaves (EEGL) on the profile of CD4+ T cells, CD4+CD25+ T cells, and B220+ cells. Splenic cells were isolated from BALB/c mice and cultured in RPMI1640 medium in the presence of EEGL. After 4 days of incubation, cells were harvested, stained with antibodies and analyzed by flow cytometer. The data were analyzed by one-way ANOVA with Î±= 0.05 and Tukey test using SPSS 16.0 for windows. The results showed that the extract ofÂ G. procumbens could increase proliferation of CD4+CD62L T cell, CD4+CD25+T cells, and B220+ cells compared to the control. Here, we showed the biological effect of G. procumbensas medicinal herb with immunomodulatory activity andthe dose of 0.1 Âµg/ml and 1.0 Âµg/ml could promote T cell activation compared to the highest dose of 10 Âµg/ml. In terestingly, the dose of 10 Âµg/ml rather promote than inhibit B cell proliferation.

Immunomodulator Testing on Ethanol Extract of Gynura procumbens Leaves to Mus musculus Adaptive Immune System: in Vitro Study Dinia Rizqi Dwijayanti; Muhaimin Rifa'i
The Journal of Experimental Life Science Vol. 4 No. 1 (2014)
Publisher : Postgraduate School, Universitas Brawijaya

Immunomodulator is a substance that has an ability to modulate the activity and function of immune system. Gynura procumbens supposed to has benefit as an immunomodulator because of it afficacy to cure many diseases. The aim of this study is to determine the effect and dose variations of G. procumbens extract on biological aspect of CD4+CD62L-, CD4+CD62L+, CD8+CD62L- and CD8+CD62L+ T cells. G. procumbens extract concentrations that used in this experiment were 0 µg /ml, 0.1 µg/ml, 1 µg/ml, and 10 µg/ml. Spleen cells were cultured for 4 days in 5% CO2 incubator at a temperature of 37°C. Cultured cells were harvested and analyzed by flowcytometry to asses cell surface molecule expression. The resulting data were tabulated and analyzed using ANOVA analysis with a significance of 0.05% on SPSS version 16. Results showed that the extract of G. procumbens can increase the proliferation of CD4+CD62L-, CD4+CD62L+, CD8+CD62L- and CD8+CD62L+ T cells compared to the control. Dose of 1 µg/ml showed the highest effect to promote cell activation compared with the dose of 0.1 µg/ml and 10 µg/ml. Dose of 10 µg/ml could suppress CD4+CD62L-, CD4+CD62L+, CD8+CD62L- and CD8+CD62L+ T cells development. This study suggests that the ethanol extract of G. procumbens has benefit as an immunomodulator and involved in the immune system. Keywords: Gynura procumbens, immunity, immunomodulator, in vitro, lymphocytes.

Design of Epitope-Based Vaccine Against SARS-CoV-2: An Immuno-Informatics Study: Epitope-Based Vaccine Against SARS-CoV-2 Kusuma, Kavana Hafil; Widyananda, Muhammad Hermawan; Nafisah, Wirdatun; Grahadi, Rahmat; Christina, Yuyun Ika; Dwijayanti, Dinia Rizqi; Mustikaningtyas, Dewi; Widodo, Nashi; Djati, Muhammad Sasmito
Journal of Tropical Life Science Vol. 14 No. 3 (2024): In Press
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.14.03.07

This study aimed to develop an epitope-based vaccine of SARS-CoV-2 S protein through an immuno-informatics study. The whole genome of SARS-CoV-2 sequences was obtained from the GISAID database and then trimmed to obtain the S protein sequences. The alignment was done by Clustal-W of MEGA software. Epitope prediction and modeling were performed by Discotope BepiPred and the PepFold3 web server. The allergic responses and physicochemical characteristics of predicted epitopes were analyzed using the AlgPred and ProtParam from ExPASy. Molecular docking and dynamic stimulation were performed using AutoDock Vina and YASARA. Biovia Discovery Studio 2019 was used to visualize the molecular docking results. The study predicted 3 potential epitopes, including ‘GDEVRQIAPGQTGKIADYNYKLP’ (epitope 1), ‘YTMSLGAENSVAYSNN’ (epitope 2), and ‘VNNSYECDIPI’ (epitope 3) located in the spike head specifically RBD region. The epitopes did not show an allergen reaction based on IgE epitope mapping. The suitable overexpression for the host of epitopes was mammalian cells. Only epitopes 1 and 2 were stable (instability index above 40). Epitopes 1, 2, and 3 interacted with BCR with binding affinity values -6.6, -7.8, and -7.5 kcal/mol. Epitope 2 wasere stable when interacting with the BCR. Therefore, three epitopes were predicted to have high potency as the SARS-CoV-2 epitope-based vaccine.

The Comparison Effect of DOCA and L-NAME on T Cells Activation in the Preeclampsia Mice Model Khodijah, Riska Amalia; Christina, Yuyun Ika; Dwijayanti, Dinia Rizqi; Rahayu, Sri; Rifa'i, Muhaimin; Djati, Muhammad Sasmito
The Journal of Experimental Life Science Vol. 14 No. 3 (2024)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2024.014.03.03

Preeclampsia is a systemic disorder of pregnancy characterized by the maternal immune system's failure to properly adapt to fetal antigens, resulting in chronic inflammatory responses. This research aimed to examine the effects of DOCA (deoxycorticosterone acetate) and L-NAME (Nω-nitro-L-arginine methyl ester) in inducing preeclampsia in pregnant BALB/c mice, focusing on lymphocyte activation. Twenty-four BALB/c mice were randomly divided into four groups: NP (non-pregnant mice), P (healthy pregnant mice), D (pregnant mice received DOCA), and L (pregnant mice received L-NAME). DOCA was dissolved in corn oil and administered subcutaneously at 12.5 mg.kg-1 BW before pregnancy and 6.5 mg.kg-1 BW weekly during pregnancy. L-NAME was administered daily starting from day 5 of pregnancy. Mice were dissected on day 16 of pregnancy, and the spleen was isolated to analyze the relative number of CD4+CD62L+ and CD8+CD62L+ T cells. The results showed that DOCA and LNAME exhibited fewer CD4+CD62L+ and CD8+CD62L+ T cells than healthy pregnant mice. The administration of DOCA at 12.5 mg.kg-1 BW (before mating) and 6.5 mg.kg-1 (day 7 of pregnancy) was more effective in triggering the activation of CD4+CD62L+ and CD8+CD62L+ T cells than the others indicated by the lowest number of CD4+CD62L+ and CD8+CD62L+ T cells. However, the conclusion of which one is more effective in inducing preeclampsia has not been reached. This is due to the many parameters that must be observed related to preeclampsia. Further studies are needed, especially examining proinflammatory cytokine production in T cells after induction with both inducers. Keywords: DOCA, L-NAME, Lymphocyte, Mice, Preeclampsia.

Evaluation of TNF-α and IFN-γ Levels in Macrophage of Preeclampsia Mice Model Induced by DOCA and L-NAME Susanti, Winda Karina; Christina, Yuyun Ika; Dwijayanti, Dinia Rizqi; Rahayu, Sri; Rifa'i, Muhaimin; Djati, Muhammad Sasmito
The Journal of Experimental Life Science Vol. 14 No. 3 (2024)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2024.014.03.05

Preeclampsia is a pregnancy disorder characterized by high blood pressure, proteinuria, and chronic inflammation that potentially leads to multiorgan failure. This study investigated differences in the relative number of pro-inflammatory cytokines (IFN-γ & TNF-α) in preeclamptic mice induced by DOCA and L-NAME. Eighteen pregnant BALB/c mice (n=6): pregnant mice without any treatment (P), pregnant mice treated with Deoxycorticosterone acetate/DOCA (D), and pregnant mice treated with N-ω-L-arginine Methyl Ester/L-NAME (L) and healthy nonpregnant mice as control (NP). DOCA at 12.5 mg.kg-1 BW was injected subcutaneously before mating and 6.5 mg. kg-1 BW after mating every week for 16 days. L-NAME was administered orally at 75 mg.kg-1 BW daily after five days of gestation. Mice were dissected in the second trimester (day 16), and then the spleen was isolated to analyze the relative number of CD11b+IFN-γ+ and CD11b+TNF-α+ using flow cytometry analysis. The results showed that DOCA and L-NAME induction did not significantly induce the production of TNF-α levels in the macrophage of pregnant mice. However, both DOCA and L-NAME significantly induce the production of IFN-γ levels in the macrophage of pregnant mice. Further evaluation of other markers related to preeclampsia should be done to better understand the roles of DOCA and L-NAME in inducing preeclampsia. Keywords: DOCA, L-NAME, mice, preeclampsia, pregnant.

Design of Epitope-Based Vaccine Against SARS-CoV-2: An Immuno-Informatics Study: Epitope-Based Vaccine Against SARS-CoV-2 Kusuma, Kavana Hafil; Widyananda, Muhammad Hermawan; Nafisah, Wirdatun; Grahadi, Rahmat; Christina, Yuyun Ika; Dwijayanti, Dinia Rizqi; Mustikaningtyas, Dewi; Widodo, Nashi; Djati, Muhammad Sasmito
Journal of Tropical Life Science Vol. 14 No. 3 (2024)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.14.03.07

This study aimed to develop an epitope-based vaccine of SARS-CoV-2 S protein through an immuno-informatics study. The whole genome of SARS-CoV-2 sequences was obtained from the GISAID database and then trimmed to obtain the S protein sequences. The alignment was done by Clustal-W of MEGA software. Epitope prediction and modeling were performed by Discotope BepiPred and the PepFold3 web server. The allergic responses and physicochemical characteristics of predicted epitopes were analyzed using the AlgPred and ProtParam from ExPASy. Molecular docking and dynamic stimulation were performed using AutoDock Vina and YASARA. Biovia Discovery Studio 2019 was used to visualize the molecular docking results. The study predicted 3 potential epitopes, including ‘GDEVRQIAPGQTGKIADYNYKLP’ (epitope 1), ‘YTMSLGAENSVAYSNN’ (epitope 2), and ‘VNNSYECDIPI’ (epitope 3) located in the spike head specifically RBD region. The epitopes did not show an allergen reaction based on IgE epitope mapping. The suitable overexpression for the host of epitopes was mammalian cells. Only epitopes 1 and 2 were stable (instability index above 40). Epitopes 1, 2, and 3 interacted with BCR with binding affinity values -6.6, -7.8, and -7.5 kcal/mol. Epitope 2 wasere stable when interacting with the BCR. Therefore, three epitopes were predicted to have high potency as the SARS-CoV-2 epitope-based vaccine.

Anti-inflammatory Activity of Elephantopus scaber and Sauropus androgynus Combination in Pregnant Mice Infected with Escherichia coli Asfi, Nida; Christina, Yuyun Ika; Dwijayanti, Dinia Rizqi; Rifa’i, Muhaimin; Djati, Muhammad Sasmito
The Journal of Experimental Life Science Vol. 12 No. 3 (2022)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2022.012.03.06

The current study aimed to investigate the effectiveness of Elephantopus scaber and Sauropus androgynus as anti-inflammatory agents in pregnant mice infected with Escherichia coli. This study used seven treatments group (n=3): K- (healthy pregnant mice), K+ (pregnant mice infected with E. coli), P1 (pregnant mice infected with E. coli + E. scaber 100%), P2 (pregnant mice infected with E. coli + E. scaber 75% and S. androgynus 25%), P3 (pregnant mice infected with E. coli + E. scaber 50% and S. androgynus 50%), P4 (pregnant mice infected with E. coli + E. scaber 25% and S. androgynus 75%), P5 (pregnant mice infected with E. coli + S. androgynus 100%). Flow cytometry analysis was used to analyze cell populations expressing CD4+TNFα+, CD4+IFNγ+ and regulatory T cells (CD4+CD25+CD62L+). All treatment groups significantly (p<0.05) decreased TNFα and IFNγ levels, while the P2 group was more effective in increasing regulatory T cells at the 1st and 2nd trimesters of the pregnancy. This study showed that E. scaber and S. androgynus combination alleviated inflammation by reducing inflammatory cytokines (TNFα and IFNγ) and increasing T-regulatory cells. Therefore, E. scaber and S. androgynus combination could suppress the inflammation during pregnancy and infection. Keywords: Elephantopus scaber, immune system, infection, inflammation, Sauropus androgynous.

Piper betle L. Leaves Extract Potentially Reduce the Nitric Oxide Production on LPS-Induced RAW 264.7 Cell Lines Dwijayanti, Dinia Rizqi; Puspitarini, Sapti; Widodo, Nashi
The Journal of Experimental Life Science Vol. 13 No. 2 (2023)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2023.013.02.02

Chronic inflammation can lead to several diseases that represent the leading causes of mortality worldwide. Conventional treatment of inflammation can carry some risks. Therefore, research on herbal medicine that are suspected of having anti-inflammatory effects, such as Piper betle L., is important. This study aims to investigate the effect of P. betle L. extract on nitric oxide as a pro-inflammatory mediator. The dried leaves of P. betle L. were extracted by ethanol. RAW 264.7 cells were treated with LPS and P. betle L. extract (PBE). Nitric oxide was measured by the Griess method. Antioxidant activity was determined using 2,2–Diphenyl-1-picrylhydrazyl (DPPH) method. Total flavonoids and phenolic content were also identified by aluminium chloride and Folin–Ciocalteu colorimetric assay, respectively. This study demonstrated that the PBE has excellent NO suppression activity with the IC50 56.22±16.41 μg.mL-1, without cytotoxicity. PBE also has DPPH inhibitory concentration IC50 values of 279.67±11.36 ppm. Interestingly, PBE has a flavonoid content of 50.17±3.14 mg QE.g-1 and phenolic content of 128.92±1.2 mg GAE.g-1. These compounds are thought to be responsible for its anti-inflammatory as well as antioxidant. This study proved that P. betle L. leaves extract could be used as a candidate for anti-inflammatory drugs. Nevertheless, further research about the biological activity mechanism and their bioactive compounds' purification is still required. Keywords: Inflammation, lipopolysaccharide, Macrophage, Nitric Oxide, Piper betle.

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