• Title/Summary/Keyword: lymphocyte proliferation

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Zerumbone's Effects on Jurkat Cell Proliferation and Migration (Zerumbone이 Jurkat 세포의 증식과 유주에 미치는 영향)

  • Moon, Cheol
    • Korean Journal of Clinical Laboratory Science
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    • v.47 no.4
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    • pp.182-187
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    • 2015
  • Zerumbone is a major component of the essential oils of Zingiber zerumbet Smith and is known to have a number of effects on the functions of various cells, including immune cells. Many reports present the zerumbone's functions in various biological environments including cancer and inflammation. In this report, using a transwell system, we confirmed that zerumbone decreased the stromal cell-driven factor-$1{\alpha}$ (SDF-$1{\alpha}$), induced migration of Jurkat cells; about a 25% decrease in the case of 100 ng/mL SDF-$1{\alpha}$ treatment, 17% decrease in the case of 200 ng/mL. Whereas, no significant changes of basic cellular proliferation were observed after zerumbone treatment. These results are novel and promising functions of zerumbone on T cell physiology. At the same time, there is a great need to confirm the results using more physiological T cells and to proceed with cellular and biochemical mechanism studies, measuring apoptosis, CXCR4 expression and phosphorylation of ZAP-70 and Erk1/2.

Effects of Dietary Polyunsaturated Fatty Acids on Antibody Production and Lymphocyte Proliferation of Laying Hens

  • Xia, Z.G.;Guo, Y.M.;Chen, S.Y.;Yuan, J.M.
    • Asian-Australasian Journal of Animal Sciences
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    • v.16 no.9
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    • pp.1320-1325
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    • 2003
  • The purpose of present study was to assess the effect of polyunsaturated fatty acids (PUFA) on the immune responses of laying hens. Three hundred and sixty hens at the age of 60 weeks were randomly assigned to ten diets, which contained no oil (CK), 1%, 3%, 5% fish oil (FO); 2%, 4%, 6% linseed oil (LO) and 2%, 4%, 6% corn oil (CO). After 5 weeks of feeding experimental diets, humoral and cellular immune responses were assayed. Laying hens were injected with Sheep Red Blood Cell (SRBC) and Bovine Serum Albumin (BSA) and antibody titers, which were measured on d6, d10, d14 after primary challenge and on d5, d9, d13 after secondary challenge. Concanavalin (ConA) and lipopolysaccharide (LPS) -stimulated proliferation of peripheral blood and spleen lymphocytes were assessed by [$^3$H] thymidine incorporation at the week age of 5 and 10, respectively. The results showed that antibody titers in FO-fed and LO-fed laying hens were higher than that in laying hens fed CO. The proliferation response to ConA was lower in laying hens that fed oils rich in n-3 fatty acids than that in laying hens fed CO. Higher level n-3 fatty acids can improve immune functions of laying hens. In conclusion, dietary fat source and level had a significant impact on immune responses of laying hens.

The comparative study of anti-allergic and anti-inflammatory effects by fermented red ginseng and red ginseng (홍삼과 발효홍삼의 항염증 작용 및 항알러지 효과 비교)

  • Park, Hye-Jin;Jung, Da-Hye;Joo, Hae-Mi;Kang, Nam-Sung;Jang, Seon-A;Lee, Jae-Geun;Sohn, Eun-Hwa
    • Korean Journal of Plant Resources
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    • v.23 no.5
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    • pp.415-422
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    • 2010
  • Red ginseng(RG, steamed and dried root of Panax ginseng C. A. Meyer, family Araliaceae) and fermented red ginseng(FRG, fermented red ginseng by yeast and lactic acid bacteria) are known to show different pharmacological effects by changed composition of saponins through fermentation. We examined the effects of RG and FRG on $\beta$-hexosaminidase secretion, ICAM-1 expression, the mitogen-induced proliferation of lymphocyte from mice in ex vivo systems and HaCaT cell(keratinocyte) proliferation to compare the anti-allergic and anti-inflammatory effects between both groups. RG groups showed inhibition of $\beta$-hexosaminidase secretion and ICAM-1 expression at $1{\mu}g/ml$, $10{\mu}g/ml$ and the same effects were observed at all concentrations in FRG groups. In our study, RG increased LPS-induced B cell proliferation at $1{\mu}g/ml$ and ConA-induced B cell proliferation at $100\;{\mu}g/ml$ but FRG decreased LPS- and ConA-induced lymphocytes at $100\;{\mu}g/ml$. We showed that FRG increased the proliferation of HaCaT at 1, $10{\mu}g/ml$ but not by RG. These findings suggest that RG and FRG might have anti-inflammatory and anti-allergic effects, which can be needed to proper clinical concentration to applied to various allergic diseases and inflammation.

Mimicking Odontogenic Pain Caused by Burkitt's Lymphoma: A Case Report

  • Kim, Eui-Joo;Kim, Soung-Min;Park, Hee-Kyung
    • Journal of Oral Medicine and Pain
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    • v.42 no.3
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    • pp.85-88
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    • 2017
  • Burkitt's lymphoma is a malignant monoclonal proliferation of early B-lymphocyte. Since Burkitt's lymphoma is a highly aggressive disease, early detection is a crucial. This disease often involves jaw and mandibular mass or swelling may also be seen, but in the early phase of Burkitt's lymphoma these symptoms cannot be observed. A rare case of Burkitt's lymphoma without any mandibular mass and the general symptoms was present. The excruciating toothache led the patient to visit the dental clinic and misdiagnosis of chronic periodontal abscess was made initially. Dentists should consider the oral manifestations of systemic disease when the multiple periodontal ligament space widening is observed and the dental treatment for mimicking odontogenic pain has no effect.

Effects of Protein-Bound Polysacharide Isolated from Acanthopananx senticosus in Reducing the Toxic Effects of Cisplatin (가시오가피 추출물의 독성경감 및 면역증강효과)

  • Lee, Keyong-Ho;Yoon, Won-Ho
    • Korean Journal of Pharmacognosy
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    • v.38 no.2 s.149
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    • pp.152-156
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    • 2007
  • Protein-bound polysaccharide is derived from Acanthopananx senticosus by the cold water extraction. The aim of the study was to evaluate the effects of PS against weight loss and hematological change as a indication of toxicity produced by the treatment of cisplatin. PS protected the weight loss caused by cisplatin (6 mg/kg) and significantly recovered hematological change. Treatment of PS showed the recovery on the weight loss and hematological change as indicators of toxicity of cisplatin treatment. By increasing lymphocyte proliferation and cytokine production, PS may be highly effective in protecting against cisplatin-induced toxicity. The results suggest PS might have a role in reducing toxicity or permitting larger dose of cisplatin to be given.

Sister Chromatid Exchanges in Lymphocytes on Normal Human Blood Culture with Mercury chloride or Methylmercury Chloride (Mercury chloride 및 Methylmercury chloride가 정상인(正常人)의 혈액배양(血液培養)에서 임파구(淋巴球)의 자매염색분체교환(姉妹染色分體交換)에 미치는 영향(影響))

  • Koh, Dai-Ha
    • Journal of Preventive Medicine and Public Health
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    • v.17 no.1
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    • pp.245-250
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    • 1984
  • Reciprocal exchanges of DNA in sister chromatids (SCEs) are induced by various carcinogens and mutagens, although the quantitative relationship between the number of mutations and SCEs induced varies among chemicals. Nevertheless, the analysis of SCEs production by various agents often proposed as a sensitive and quantitative assay for mutagenicity and cytotoxicity. Mercury, even if which has no evidences for mutagenicity and carcinogenicity, is reported to exert some cytotoxic effects, such as chromosomal aberrations or bad influences to ovulation and reproduction in experimental animals, etc.. In this study, tests for sister chromatid exchanges have been carried out on normal human lymphocytes in whole blood culture to add mercury chloride ($HgCl_2$) or methylmercury chloride ($CH_3\;HgCl$) for 72 hr. The results indicate the dose-dependent relationship between the frequencies of SCEs and the concentrations of $HgCl_2,\;CH_{3}HgCl$ and 5-bromo-2'-deoxyuridine (BrdU). Lymphocyte proliferation has depressed in the higher concentration of mercury.

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Ginkgetin, a plant biflavone from Ginkgo biloba leaves, inhibits release of cytokines from human PMMC

  • Kim, Hee-Kee;Son, Kun-Ho;Chang, Hyeun-Wook;Kang, Sam-Sik;Kim, Hyun-Pyo
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1998.11a
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    • pp.195-195
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    • 1998
  • Ginkgetin was previously reported as an inhibitor of group II phospholipase A$_2$. It also inhibited in vitro arachidonate release from the activated macrophages and lymphocyte proliferation. These previous studies suggested an anti-inflammatory nature of ginkgetin, especially on chronic inflammation. In fact, ginkgetin showed potent anti-inflammatory activity against rat adjuvant-induced arthritis, a chronic inflammatory animal model, with comparable analgesic activity. In order to investigate the action mechanisms, tumor necrosis factor and interferone release were studied from human PMMC. It was found that ginkgetin clearly inhibited release of these cytoknes from human PMMC. Ginkgetin was also found to inhibit immunoglobulin M production at 1 - 10 uM. These results may contribute to antiarthritic activity of ginkgetin in vivo.

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Studies of Tarak, a Korean Traditional Fermented Milk Product (한국 전통 발효유 타락에 관한 연구 고찰)

  • Yoon, Jin A;Shin, Kyung-Ok
    • Journal of Dairy Science and Biotechnology
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    • v.36 no.1
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    • pp.26-31
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    • 2018
  • Tarak is a traditional Korean fermented milk product, which is prepared by the addition of rice wine to milk. The major microbial strains found in Tarak are Leuconostoc citreum, Lactobacillus plantarum, Lactococcus lactis, Saccharomyces cerevisiae, and Pichia kudriavzevii. The activity of lactic acid bacteria isolated from traditional Korean foods of Taraki against the carcinogenic bacteria Helicobacter pylori, Escherichia coli O157:H7, and Cronobacter sakazakii was characterized. Tarak extract significantly increased the proliferation of T-lymphocyte Jurkat (clone E6-1) cells. Tarak also inhibited the tyrosinase activity and melanin biosynthesis induced by an ${\alpha}$-melanocyte-stimulating hormone in pituitary intermediate lobe.

Screening of the Extracts of Herbal Medicines which Stimulate the Hydrolysis of Phosphoinositides in Jurkat T-lymphocyte Cells (Jurkat T 면역세포에서 Phosphoinositides의 가수분해를 증가시키는 약용식물 추출물의 검색)

  • 민도식;이영한;백석환;서판길;류성호
    • Biomolecules & Therapeutics
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    • v.4 no.2
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    • pp.148-153
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    • 1996
  • Activation of the T lymphocytes results in a variety of early biochemical events ultimately leading to cell proliferation and lymphokine production. Stimulation of the signal transduction cascade in T cells through the T cell receptor coincides with activation of the phosphatidylinositol-phospholipase C (PI-PLC) pathway. Therefore, we have established a model system to screen immune-simulator that can increase the hydrolysis of phosphoinositides in human T cell leukemia Jurkat cells. As a result of screening from herbal medicine extract, 4 extracts (O1ibanum, Ephedrae Herba, Real Gar, Saussureae Radix) were found 14 increase the production of inositol phosphates. All the active fraction from the four kinds of extract were fluted in a different retention time on C-18 HPLC and these active fraction also showed difference in cell specificity. And all the active fractions increased DNA synthesis in T cell. Therefore, it is suggested that the active fraction among 4 extracts might contain a compound having different properties one another.

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Nuclear Anomalies, Chromosomal Aberrations and Proliferation Rates in Cultured Lymphocytes of Head and Neck Cancer Patients

  • George, Alex;Dey, Rupraj;Bhuria, Vikas;Banerjee, Shouvik;Ethirajan, Sivakumar;Siluvaimuthu, Ashok;Saraswathy, Radha
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.3
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    • pp.1119-1123
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    • 2014
  • Head and neck cancers (HNC) are extremely complex disease types and it is likely that chromosomal instability is involved in the genetic mechanisms of its genesis. However, there is little information regarding the background levels of chromosome instability in these patients. In this pilot study, we examined spontaneous chromosome instability in short-term lymphocyte cultures (72 hours) from 72 study subjects - 36 newly diagnosed HNC squamous cell carcinoma patients and 36 healthy ethnic controls. We estimated chromosome instability (CIN) using chromosomal aberration (CA) analysis and nuclear level anomalies using the Cytokinesis Block Micronucleus Cytome Assay (CBMN Cyt Assay). The proliferation rates in cultures of peripheral blood lymphocytes (PBL) were assessed by calculating the Cytokinesis Block Proliferation Index (CBPI). Our results showed a significantly higher mean level of spontaneous chromosome type aberrations (CSAs), chromatid type aberration (CTAs) dicentric chromosomes (DIC) and chromosome aneuploidy (CANE UP) in patients (CSAs, $0.0294{\pm}0.0038$; CTAs, $0.0925{\pm}0.0060$; DICs, $0.0213{\pm}0.0003$; and CANE UPs, $0.0308{\pm}0.0035$) compared to controls (CSAs, $0.0005{\pm}0.0003$; CTAs, $0.0058{\pm}0.0015$; DICs, $0.0005{\pm}0.0003$; and CANEUPs, $0.0052{\pm}0.0013$) where p<0.001l. Similarly, spontaneous nuclear anomalies showed significantly higher mean level of micronuclei (MNi), nucleoplasmic bridges (NPBs) and nuclear buds (NBUDs) among cases (MNi, $0.01867{\pm}0.00108$; NPBs, $0.0156{\pm}0.00234$; NBUDs, $0.00658{\pm}0.00068$) compared with controls (MNi, $0.00027{\pm}0.00009$; NPBs, $0.00002{\pm}0.00002$; NBUDs, $0.00011{\pm}0.00007$).The evaluation of CBPI supported genomic instability in the peripheral blood lymphocytes showing a significantly lower proliferation rate in HNC patients ($1.525{\pm}0.005552$) compared to healthy subjects ($1.686{\pm}0.009520$) (p<0.0001). In conclusion, our preliminary results showed that visible spontaneous genomic instability and low rate proliferation in the cultured peripheral lymphocytes of solid tumors could be biomarkers to predict malignancy in early stages.