• Title/Summary/Keyword: Helper

Search Result 561, Processing Time 0.021 seconds

Studies on the Immunological Characteristic of Cervi cornu Extract (녹각 추출액의 면역학적 특성에 관한 연구)

  • Kim, Huyn-Sik;Huh, In-Hoi;Lee, Sang-Joon;Ann, Hyung-Soo
    • YAKHAK HOEJI
    • /
    • v.38 no.6
    • /
    • pp.806-813
    • /
    • 1994
  • These experiments were conducted to investigate the effects of Cervi cornu extract on lymphocyte blastogenesis in spleen, thymus, lymph node, born marrow cells of Balb/c mouse, haemagglutination reaction against sheep red blood cell (SRBC), plaque forming cell (PFC) assay against SRBC and IL-2 production. Lymphocyte blastogenesis was determined by $[^3H]-thymidine$ incorporation. According to the lymphcoyte blastogenesis test on the immune cell. Ceriv cornu extrat was showed a potent mitogenic activity on the spleen and lymph node cells, but had mild mitogenic activity on the thymus and born marrow cells. Mitogenic active component of Crevi cornu extract was identified to be materials where molecular weights are higher than 5,000 by membrane filteration method. Cervi cornu extrat was shown to increase mitogenic effect on the lipopolysaccharide (LPS)-stimulated spleen cells significantly, but decrease mitogenic effect on the Con A stimulated spleen cell at the concentration 0.3%, 1% and 3%. Ceriv cornu extract didn't show to be haemagglutination reaction and showed to inhibit the Con A-induced haemagglutination reaction against SREC. Result of SRBC-PEC test. Ceriv cornu extract significantly increase the number of PEC at the concentration of 0.1% and 1%. When IL-2 or IL-4 production was determined by proliferation of CTLL-2 cells. Ceriv cornu extract was not shown to stimulate the production of IL-2. From the above results, it is shown that Ceriv cornu extract increased antibody production by B cells, but nor IL-2 production by helper T cells.

  • PDF

Tissue Expression, Serum and Salivary Levels of IL-10 in Patients with Head and Neck Squamous Cell Carcinoma

  • Hamzavi, Marzieh;Tadbir, Azadeh Andisheh;Rezvani, Gita;Ashraf, Mohammad Javad;Fattahi, Mohammad Javad;Khademi, Bijan;Sardari, Yasaman;Jeirudi, Naghmeh
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.14 no.3
    • /
    • pp.1681-1685
    • /
    • 2013
  • Background: Head and neck SCC is a common cancer related to various factors. IL-10, a pleiotropic cytokine produced by macrophages, T-helper-2 cells, and B lymphocytes, is thought to play a potential pathogenetic or therapeutic role in a number of human conditions, such as inflammation, autoimmunity and cancer. The present study was designed to evaluate the relation between tissue expression, serum and salivary levels of IL-10 in head and neck squamous cell carcinomas (HNSCCs) and their correlation with clinicopathologic features. Materials and Methods: Samples were collected from 30 patients with HNSCCs and 24 healthy volunteers. IHC analysis was used to examine the tissue expression and ELISA was employed to measure serum and salivary levels. Results: Our study showed tissue expression of IL-10 to be significantily higher in patients (P: 0.001), but there was no relation between tissue expression, serum and salivary levels of the marker (P>0.05). Also except for a positive correlation between tissue expression of IL-10 and stage (P: 0.044), there was no relation between this marker and clinicopathologic features. There was no correlation between serum and salivary levels in either patients or controls. Conclusions: It seems there is no correlation between level of IL-10 in serum and saliva and this marker in saliva and serum does not reflect tissue expression.

Immunomodulatory Effect of a New Herbal Preparation (HemoHIM) in Cyclophosphamide-treated Mice

  • Park, Hae-Ran;Jo, Sung-Kee;Jung, U-Hee;Kim, Sung-Ho;Yee, Sung-Tae
    • Preventive Nutrition and Food Science
    • /
    • v.11 no.1
    • /
    • pp.54-60
    • /
    • 2006
  • The immunomodulatory effect of a new herbal preparation, HemoHIM, on the recovery from leukopenia induced by cyclophosphamide treatment was investigated. The HemoHIM was made up with an addition of the ethanol-insoluble fraction to the total water extract of Angelica Radix, Cnidii Rhizoma and Paeonia Radix. Daily oral administration of 100 mg/kg BW or 500 mg/kg BW HemoHIM accelerated the recovery from cyclophosphamide-induced leukopenia. HemoHIM increased the number of leukocytes and lymphocytes in the peripheral blood when compared with the cyclophosphamide-treated control. Moreover, the suppressed natural killer (NK) cell activity and interferon $(IFN)-{\gamma}$ secretion in the cyclophosphamide-treated mice were restored by the administration of HemoHIM. HemoHIM significantly reduced the abnormally heightened ratio of interleukin $(IL)-4/IFN-{\gamma}$ and immunoglobulin (Ig)E/IgG2a in the cyclophosphamide-treated mice. These results suggest that HemoHIM accelerates the recovery from leukopenia and alleviates the imbalanced T helper (Th)l/Th2 responses in the cyclophosphamide-treated mice. Additionally, HemoHIM was found to stimulate normal splenocytes to secrete not only Thl type cytokines such as $IFN-{\gamma}$ and IL-2, but also Th2 type cytokine IL-4. In conclusion, our results show that HemoHIM certainly has an influence on the balanced recovery of immune cells and the activation of their activities in the cyclophosphamide-treated mice.

Effects of Orostachys Japhonicus Herbal-Acupuncture on Transferred Hepatic Cancer of Mouse Induced by Colon26-L5 Human Colon Cancer Cells (와송(瓦松) 약침(藥鍼)이 mouse의 간전이 암모델에 미치는 영향)

  • Sohn, Seong-Hyoun;Park, Hee-Soo
    • Journal of Acupuncture Research
    • /
    • v.23 no.6
    • /
    • pp.61-76
    • /
    • 2006
  • To study the effects of anti-cancer, anti-metastasis and immune response improvement effects of herbal-accupunture with Orostachys japhonicus A.Berger, infusion solution put into Kansu(BL18) of mouse induced by Colon26-L5 human colon cancer cells, which are corresponding to humanbody. We observed the change of body weight, surviving number, median surviving time, increase of life span, changes in amount of leukocyte, erythrocyte, platelet, total protein, creatinine, glucose and LDH, weight of spleen and kidney, histological analysis on tissue metastasis of liver, splenic cell proliferation, the expression of cytokine gene, the number of CD4+, CD8+, CD9+ and NK cell, and concluded like this. The results were obtained as follows ; 1. In acute and sub-acute cytotoxicity experiment, significantly signs were not appeared in all groups. 2. Antimetastatic experiment in vitro and in vivo showed that Orostachys Japhonicus A.Berger Herbal-acupuncture at Kansu(BL18) has antimetastatic effects. 3. The spleen cells proliferation of the experimental groups treated with Orostachys Japhonicus A.Berger infusion solution extract has increased significantly compared with that of the control group. 4. As compared with control, the population of total T cell, helper T cell, cytotoxic T cell and macrophage were increased. 5. The production of Th 1 type cytokines from splenocyte and cytokines which is associated with anti-tumor activity form macrophage were increased significantly. Above the results revealed that herbal-accupunture with Orostachys Japhonicus A.Berger infusion solution has effects of anti-cancer, anti-metastasis and immune response improvement.

  • PDF

NFATc1 and NFATc3 is Involved in the Expression of Receptor Activator of NF-${\kappa}B$ Ligand in Activated T Lymphocytes

  • Heo, Sun-Jae;Park, Hyun-Jung;Baek, Jeong-Hwa
    • International Journal of Oral Biology
    • /
    • v.38 no.1
    • /
    • pp.37-42
    • /
    • 2013
  • Receptor activator of NF-${\kappa}B$ ligand (RANKL) is an essential cytokine for osteoclast differentiation, activation and survival. T lymphocytes such as $T_{17}$ cells, a subset of T helper cells that produce IL-17, play an important role in rheumatoid arthritic bone resorption by producing inflammatory cytokines and RANKL. It has not yet been clearly elucidated how T cell activation induces RANKL expression. T cell receptor activation induces the activation of nuclear factor of activated T cell (NFAT) and expression of its target genes. In this study, we examined the role of NFAT in T cell activation-induced RANKL expression. EL-4, a murine T lymphocytic cell line, was used. When T cell activation was induced by phorbol 12-myristate 13-acetate (PMA) and ionomycin, RANKL expression increased in a time-dependent manner. In the presence of cyclosporin, an inhibitor of NFAT activation, this PMA/ionomycin-induced RANKL expression was blocked. Overexpression of either NFATc1 or NFATc3 induced RANKL expression. Chromatin immunoprecipitation results demonstrated that PMA/ionomycin treatment induced the binding of NFATc1 and NFATc3 to the mouse RANKL gene promoter. These results suggest that NFATc1 and NFATc3 mediates T cell receptor activation-induced RANKL expression in T lymphocytes.

Effects of Low Level Laser on the Proliferation and Gene Expression of Fibroblasts and Immune Cells (저출력레이저조사가 섬유아세포와 면역세포의 증식 및 유전자발현에 미치는 영향)

  • Ik-Jun Lim;Keum-Back Shin;Bok Choi
    • Journal of Oral Medicine and Pain
    • /
    • v.20 no.1
    • /
    • pp.53-65
    • /
    • 1995
  • The growth and synthetic activities of fibroblasts are regulated by cytokines and growth factors derived from activated inflammatory cells. Stimulatory effect of low level laser (LLL) radiation on wound healing seems to be in part due to direct stimulatory action on cell proliferation and synthetic activities of fibroblasts. Also indirect stimulatory effect on the fibroblast function through inflammatory or immune cells is another possible mechanism of biostimulatory action of LLL. This study was performed to determine the growth rate of human gingival fibroblasts obtained biopsy and culture, fibroblast cell line, and immune cell line by using $[^3H]-$ thymidine incorporation test. And gene expression pattern was also analyzed by using the DNA probe such as Hsp70, IL-1$\beta$, MIP-1$\alpha$ and actin cDNA. Proliferation rate of gingival fibroblast was increased by LLL irradiation, but no more effect was added by LPS or IL-1$\beta$ pretreatment Enhanced Hsp70 gene expression was found from gingival fibroblasts and fibroblast cell line COS by LLL irradiation., which was not more increased by LPS or IL-1$\beta$ pretreatment. LLL-irradiated promyelcytic cell line HL-60 and macrophage cell line RAW264.7 showed significant stimulatory effect of proliferation rate when compared with respective control. However there were no changes in growth rate of other immune cell tested in this study, such as B cell line WR19n.l and 230, helper T cell line Jurkat and Hut78, cytolytic T cell line CTLL-r8. By LLL-irradiation Hsp70 gene expression was increased in RAW246.7 and HL-60, not in CTLL-R8. And IL-1$\beta$ and MIP-1$\alpha$ gene expression were induced only from LLL-irradiated RAW264.7. These results led us to presume that LLL radiation may affect to the immune cells, especially to macrophage, through which it might promote wound healing process.

  • PDF

A Study on Local Variations of Elderly Welfare Facilities by Care Type (노인복지시설 유형별 지역적 편차에 관한 연구)

  • Kang, Ju-Hee;Yoon, Soon-Duck
    • The Korean Journal of Community Living Science
    • /
    • v.18 no.3
    • /
    • pp.369-378
    • /
    • 2007
  • This study purposed to examine elderly welfare facilities by type, to analyze their local variations, and ultimately to contribute to the expansion of elderly welfare infrastructure. The results are expected to help inspect elderly welfare infrastructure for providing the aged with social services before the execution of 'the insurance for elderly long term care' and establish welfare facilities by area in the future. For these purposes, we used the national data "The Current State of Elderly Welfare Facilities in 2007" produced by the Ministry of Health and Welfare. We digitized elderly welfare facilities in 163 cities and counties by type and analyzed them by area. We also examined the differences in the local distribution of representative elderly welfare facilities such as elderly welfare centers, home based facilities (home helper centers), asylums for the aged and elderly care facilities in 16 cities and provinces. Furthermore, we analyzed differences and problems in their local distribution urban areas, mixed areas of urban and rural communities, and rural areas. In addition, we studied the current state of institutionalized care and home based care, which are two major directions of current elderly welfare policies, based on the local distribution of facilities and analyzed differences in the trends according to area. According to these results, the urban had more home based care facilities than the rural. However, the rural had more institutionalized care facilities than urban. Also, each local self-governing body showed unique characteristics. Therefore, these results suggest that we need to establish elderly welfare policies based on the distribution of facility types by area.

  • PDF

Successful Application of the Dual-Vector System II in Creating a Reliable Phage-Displayed Combinatorial Fab Library

  • Song, Suk-yoon;Hur, Byung-ung;Lee, Kyung-woo;Choi, Hyo-jung;Kim, Sung-soo;Kang, Goo;Cha, Sang-hoon
    • Molecules and Cells
    • /
    • v.27 no.3
    • /
    • pp.313-319
    • /
    • 2009
  • The dual-vector system-II (DVS-II), which allows efficient display of Fab antibodies on phage, has been reported previously, but its practical applicability in a phage-displayed antibody library has not been verified. To resolve this issue, we created two small combinatorial human Fab antibody libraries using the DVS-II, and isolation of target-specific antibodies was attempted. Biopanning of one antibody library, termed DVFAB-1L library, which has a $1.3{\times}10^7$ combinatorial antibody complexity, against fluorescein-BSA resulted in successful isolation of human Fab clones specific for the antigen despite the presence of only a single light chain in the library. By using the unique feature of the DVS-II, an antibody library of a larger size, named DVFAB-131L, which has a $1.5{\times}10^9$ combinatorial antibody complexity, was also generated in a rapid manner by combining $1.3{\times}10^7$ heavy chains and 131 light chains and more diverse anti-fluorescein-BSA Fab antibody clones were successfully obtained. Our results demonstrate that the DVS-II can be applied readily in creating phage-displayed antibody libraries with much less effort, and target-specific antibody clones can be isolated reliably via light chain promiscuity of antibody molecules.

How the Ageism Influenced on Elder Abuse and the Mediating Effects of Counselling from Public Organizations :Focusing on Care Helpers Working at Elderly Long-term Care Institutions (노인차별이 노인학대에 미치는 영향과 공적기관상담의 매개효과 :노인장기요양기관 요양보호사를 대상으로)

  • Jin, Chul-Sook
    • The Journal of the Korea Contents Association
    • /
    • v.15 no.10
    • /
    • pp.193-204
    • /
    • 2015
  • This study investigated how the ageism of geriatric care helpers influenced on elder abuse during their long-term care service for elderly, and analyzed the mediating effects of counselling from public organizations on the causal relationship between ageism and elder abuse. The data used in this study was collected from 627 of care helpers working at elderly long-term care institutions in Gyeongsangnam-do Province, using structured survey(or questionnaire), and analyzed by Baron and Kenny(1986)'s multiple regression method. Ageism has a meaningful influence on elder abuse and counselling from public organizations has meaningful mediating effect on the relationship between ageism and elder abuse. These results show that elder abuse according to ageism can be improved by counselling from public organizations and It presents some practical implications for ageism and counselling from public organizations.

Alteration of Cytokine Production during Visceral Larva Migrans by Toxascaris leonina in Mice

  • Kang, Shin Ae;Park, Mi-Kyung;Cho, Min Kyoung;Yu, Hak Sun
    • Parasites, Hosts and Diseases
    • /
    • v.51 no.5
    • /
    • pp.583-588
    • /
    • 2013
  • To determine alteration of immune responses during visceral larva migrans (VLM) caused by Toxascaris leonina at several time points, we experimentally infected mice with embryonated eggs of T. leonina and measured T-helper (Th) cell-related serial cytokine production after infection. At day 5 post infection (PI), most larvae were detected from the lungs, spleen, intestine, and muscle. Expression of thymic stromal lymphopoietin (TSLP) and CCL11 (eotaxin) showed a significant increase in most infected organs, except the intestine. However, expression of the CXCL1 (Gro-${\alpha}$) gene was most highly enhanced in the intestine at day 14 PI. Th1-related cytokine secretion of splenocytes showed increases at day 28 PI, and the level showed a decrease at day 42 PI. Th2-related cytokine secretion of splenocytes also showed an increase after infection; in particular, IL-5 level showed a significant increase at day 14 PI, and the level showed a decrease at day 28 PI. However, levels of Th17-related cytokines, IL-6 and IL-17A, showed gradual increases until day 42 PI. In conclusion, Th1, Th2, and Th17-related cytokine production might be important in immune responses against T. leonina VLM in experimental mice.