• Title/Summary/Keyword: Immune System

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Study of plasma TGF-β1 level as a useful tumor marker in gastric cancer and prostate cancer (위암 및 전립선암의 종양 표지 인자로서 혈장 TGF-β1에 대한 연구)

  • Lim, Chang Ki;Shin, Hoon;Choi, In Young;Chung, Byung Ha;Ryu, Min Hee;Bang, Yung Jue;Jin, Seung Won
    • IMMUNE NETWORK
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    • v.1 no.3
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    • pp.260-265
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    • 2001
  • Transforming growth $factor-{\beta}1$ ($TGF-{\beta}1$) is a multipotent growth factor affecting development, homeostasis and tissue repair. Many kinds of malignant tissues were reported to overexpress transforming growth $factor-{\beta}1$ ($TGF-{\beta}1$) gene. However, a little work has been done on the circulating $TGF-{\beta}1$ and the association of $TGF-{\beta}1$ with progression in patients with malignant tumors. In this study, we measured the plasma level of $TGF-{\beta}1$ in gastric cancer and prostate cancer patients and evaluated the utility of plasma $TGF-{\beta}1$ as a possible tumor marker. We used Enzyme-linked immunosorbent assay (ELISA) system in order to measure plasma $TGF-{\beta}1$ level in 134 gastric cancer patients, 50 prostate cancer patients and 290 normal controls. And the tumor marker, carcinoembryonic antigen (CEA), prostate-specific antigen (PSA), was compared with $TGF-{\beta}1$ in the aspects of sensitivity and specificity. The mean plasma $TGF-{\beta}1$ levels were $1.219{\pm}0.834$ (0.272-5.772) ng/mL in normal controls, $5.964{\pm}3.218$ (0.845-18.124) ng/mL in gastric cancer and $4.140{\pm}2.345$ (1.108-13.302) ng/mL in prostate cancer. In gastric cancer patients difference in plasma $TGF-{\beta}1$ level was not detected according to cancer stage. In comparison with other tumor marker (CEA, PSA) $TGF-{\beta}1$ is more potent in sensitivity. These results indicate that the plasma $TGF-{\beta}1$ level can be a potent tumor marker in gastric cancer and prostate cancer.

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The Necessity of Vaccine Education for Pharmacists and Development of a Vaccine Leaflet for Patient Counseling (약사의 백신에 대한 교육의 필요성 및 환자 상담을 위한 소책자 개발)

  • Kim, Mi-Kyung;Kim, Hyun-Ah;Cho, Eun;Lee, Ok-Sang;Lim, Sung-Cil
    • Korean Journal of Clinical Pharmacy
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    • v.21 no.3
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    • pp.280-291
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    • 2011
  • Vaccines are products for immunization which can provoke antibodies by eliciting immune reponses without causing disease and have played an important role in preventing fatal and contagious diseases as well as H1N1 influenza. They are classified by two following categories; lived attenuated vaccine and killed vaccine and currently commonly using vaccines are BCG, diphtheria, tetanus, mumps, measles, rubella, polio, Haemophilus influenza type b, hepatitis B, influenza etc. All vaccines must be used correctly to reach optimal therapeutic goals and also informed well to patients to decrease potential problems. In order to do, pharmacists must have good knowledge of vaccines. The purpose of this study is to evaluate the necessity of vaccine education for pharmacists and develop a vaccine leaflet for patient counseling. We have performed a survey with questionnaire for a total of 176 pharmacists and nurses(hospital pharmacists, n=65; community pharmacists, n=50; hospital nurses, n=61) from January 27th to March 12th, 2010. The questionnaire includes items about vaccine education and counseling and 12 quizzes to evaluate responders' knowledge of vaccines. We used the SPSS(Version 12. for windows) program to analyze the data. In results, 94.9% of all responders said they had not been educated on vaccines. And only 1.1% of all responders said they know about vaccines enough to counsel patients. Pharmacists who have an experience recommending vaccines to other people are 21.7%. On the other hand, nurses who have an experience recommending vaccines to other people are 55.7%(p=0.000). The mean number of correct answers at the 12 quizzes are followings; hospital pharmacist, 8.1; community pharmacist, 6.1, hospital nurses, 6.2(p=0.000). A vaccine leaflet for patient counseling is developed with several references. In conclusion, due to no opportunity of vaccine education, pharmacists have no confidence to counsel patients and lack of knowledge of vaccine. But importance of vaccine's role is increasing, pharmacists should counsel patients in vaccination. So they need vaccine education and a vaccine leaflet will be helpful for their counseling.

Changes of Serum soluble ICAM-1 levels in Patients with Lung Cancer (폐암 환자에서 혈청 soluble ICAM-1농도의 변화)

  • Yoo, Wan Hee;Lee, Yong Chul;Rhee, Yang Keun
    • Tuberculosis and Respiratory Diseases
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    • v.43 no.4
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    • pp.527-535
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    • 1996
  • Background : Cell adhesion molecules knave been Implicated In the various stages of tumor progression and metastasis. ICAM-1 plays a important roles in cell-cell interactions in inflammatory and immune response of several diseases. Recently, elevated levels of sICAM-1 in circulation was reported as association with liver metastasis in gastric, Colonic, gall bladder and pancreatic cancer, with reduced survival in malignant melanoma. This study was performed to measure the sICAM-1 in patients with lung cancer and to evaluate the relations between staging of lung cancer and level of sICAM-1. Methods : Serum sICAM-1 was measured in 36 patients with lung cancer according to the pathologic types and clinical staging before therapy and in 8 controls with ICAM-1 ELISA kit. Results : Serum sICAM-1 levels were elevated in patients with lung cancer except small cell type. Also progression and metastasis of lung cancer associated with elevation of sICAM-1 levels. Conclusion : These results suggest that higher levels of serum ICAM-1 reflect the progression and metastasis of lung cancer and it may be used as a marker with diagnostic and prognostic significance.

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Protective Effects of Milk Thistle (Silybum marianum) against Aflatoxin B1 in Broiler Chicks

  • Chand, N.;Muhammad, Din;Durrani, F.R.;Qureshi, M. Subhan;Ullah, Sahibzada S.
    • Asian-Australasian Journal of Animal Sciences
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    • v.24 no.7
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    • pp.1011-1018
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    • 2011
  • Aflatoxin-contaminated feed cause mortality, suppression of the immune system, reduced growth rates and losses in feed efficiency. This research study was planned to investigate the immunomodulatory and growth promoting effect of milk thistle as feed additive against aflatoxin $B_1$ in broiler chicks at NWFP Agricultural University Peshawar, Pakistan. Two hundred and forty (240) day old broilers chicks were randomly assigned into four major groups AfF, aflatoxin free feed; Aflatoxin $B_1$ was present in the feed at the levels of 80-520 ${\mu}g/kg$ of the feed in the remaining three groups. Aflatoxin contaminated feed was provided for 5 weeks. Group AfB was supplemented with toxin binder "Mycoad" at 3 g/kg of feed and group AfT was supplemented with milk thistle at10 g/kg of feed. Each group was further sub divided into two sub-groups, vaccinated against ND (Newcastle disease), IB (Infectious bronchitis) and IBD (Infectious bursal diseases) according to recommended schedule of vaccination or non vaccinated. Each sub group carried three replicates with 10 chicks per replicate. Chicks were reared in pens in an open sided house. Supplementary heat was provided to all the chicks during brooding period. Mean body weight gain and dressing percentage were significantly (p<0.05) higher in group AfF, followed by AfT, AfB and Af. Weight gain and dressing percentage was the same in group AfB and AfT, while it was significantly lower in group Af. Feed intake, breast, thigh and leg weight were found significantly (p<0.05) higher in group AfF, followed by AfB, AfT and Af. Significantly lower (better) FCR value was recorded in group AfT. Water intake was significantly (p<0.05) higher in group AfT and AfF as compared to other groups. Mortality was significantly (p<0.05) higher in group Af. Mean bursa and thymus weights were found significantly (p<0.05) higher in group AfF, AfB and AfT followed by Af, while higher spleen weight was recorded in group AfT. Mean antibody titer against ND, IB and IBD was significantly (p<0.05) higher in group AfT, as compared to other groups. It is concluded that milk thistle at 10 g/kg of feed could effectively be utilized as immunostimulant and growth promotant in the presence of immunosuppressant aflatoxin $B_1$ in the feed.

Antitumor and immunomodulatory effects of a hot water extract of Phellinus baumii using Sarcoma-180 in the mouse (Pheflinus baumii 자실체 추출물의 Sarcoma-180 에 대한 항암 및 면역효과)

  • Ha, Hyo-Cheol;Kim, Hyun-Pyo;Sim, Ji Young;Chang, Yun-Hee;Kim, Hyun Su
    • Journal of Mushroom
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    • v.2 no.4
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    • pp.169-174
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    • 2004
  • A hot water extract(HWE-P4) was separated from the fruit bodies of PMO-P4, and its antitumor and immunomodulatory activities against sarcoma-180 in ICR mice were investigated. The internal transcribed spacer(ITS) regions from PMO-P4 were amplified using polymerase chain reaction(PCR) and sequenced. The results revealed that PMO-P4 was belong to the Phellinus baumii. When oral administration at the dose of 160mg/kg/day in the mice until the end of the experiment with 2 week's pre-feeding of the HWE-P4, the survival rate of the mice was 152% for 50days after the inoculation of sarcoma-180 and the suppression rate of the tumor growth was 35.3%(p<0.05) for 28 days after inoculation of sarcoma-180. The HWE-P4 increased 71.4% of the CD4/CD8 ratio and 5-fold of the expression of CD25(IL-2 receptor chain) compared with the control. From these results, the antitumor activity of HWE-P4 is exerted through its immunomodulating activity on the host's immune system.

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Immunomodulatory effect of bee pollen extract in macrophage cells (꿀벌 꽃가루 열수 추출물의 큰포식세포 면역활성 효과)

  • Kim, Yi-Eun;Cho, Eun-Ji;Byun, Eui-Hong
    • Korean Journal of Food Science and Technology
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    • v.50 no.4
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    • pp.437-443
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    • 2018
  • Activation of macrophages plays an important role in the host-immune system. In this study, we investigated the functional roles and related signaling mechanism of hot-water extracts of bee pollen (BPW) in RAW 264.7 macrophages. Since BPW did not exert cytotoxicity at concentrations ranging from 62.5 to $250{\mu}g/mL$ in macrophage cells, a concentration of $250{\mu}g/mL$ was used as the maximum dose of BPW throughout subsequent experiments. BPW increased inducible nitric oxide synthase-mediated nitric oxide production in a concentration-dependent manner. Additionally, BPW was found to induce macrophage activation by augmenting the expression of cell surface molecules (cluster of differentiation; CD80/86, and major histocompatibility complex; MHC class I/II) and production of pro-inflammatory cytokines (tumor necrosis $factor-{\alpha}$, interleukin-6, and $IL-1{\beta}$) through mitogen-activated protein kinase and nuclear $factor-{\kappa}B$ signaling pathways in RAW 264.7 macrophages. Taken together, our results indicate that BPW could potentially be used as an immunomodulatory agent.

Screening of Natural Product Libraries for the Extension of Cell Life-span through Immune System (면역시스템을 통한 세포수명연장 천연물질 스크린)

  • Yoo, Bo-Kyung;Kwon, Kisang;Ko, Young Hwa;Kim, Hong Geun;Lee, Seokhyun;Park, Kwan-Ho;Choi, Ji-Young;Kwon, O-Yu
    • Journal of Life Science
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    • v.26 no.3
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    • pp.359-363
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    • 2016
  • We have screened four natural products against 640 single compounds, which shows more two folds gene expression for both endoplasmic reticulum aminopeptidase 1 (ERAP1) and FOXO-family transcription factor (FOXO1). The results were as follows. (±)-Car-3-ene-2,5-dione from Asarum sieboldii Miq. is C10H12O2 molecular formula and the 164 kDa molecular weight. Cinobufagin from Bufonis Venennum is C26H34O6 molecular formula and 442 kDa molecular weight. So far reported main biological function is Na+/K+-ATPase inhibition. Corilagin from Euphorbia pekinensis is C27H22O18 molecular formula and 634 kDa molecular weight. Carbonic anhydrase inhibition is well known its biological function. Corydaline from Corydalis turtschaninovii is C22H27NO4 molecular formula and 369 kDa molecular weight. The main biological function is acetylcholinesterase inhibition. In the short future, four types of natural products will be used in longevity experiments with insects. The results may give one of the clues for studying new drug development candidates of the longevity.

Enterotoxigenic Bacteroides fragilis-Associated Diseases and Detection (Enterotoxigenic Bacteroides fragilis에 의한 질환과 검출)

  • Gwon, Sun-Yeong;Jang, In-Ho;Rhee, Ki-Jong
    • Korean Journal of Clinical Laboratory Science
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    • v.47 no.4
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    • pp.161-167
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    • 2015
  • These commensal intestinal bacteria can enhance the immune system and aid in nutrient absorption but can also act as opportunistic pathogens. Among these intestinal bacteria, the anaerobic Bacteroides fragilis are divided into enterotoxigenic B. fragilis (ETBF) which secrete the B. fragilis toxin (BFT) and non-enterotoxigenic B. fragilis (NTBF) which do not secrete BFT. ETBF can cause diarrhea and colitis in both humans and livestock but can also be found in asymptomatic individuals. ETBF is predominantly found in patients with inflammatory diarrheal diseases and traveller's diarrhea. Several clinical studies have also reported an increased prevalence of ETBF in human patients with inflammatory bowel disease (IBD), colitis and colorectal cancer. In small animal models (C57BL/6 wild-type mice, germ-free mice, multiple intestinal neoplasia (Min) mice, rabbits and Mongolian gerbils), ETBF have been found to initiate and/or aggravate IBD, colitis and colorectal cancer. BFT induces E-cadherin cleavage in intestinal epithelial cells resulting in loss of epithelial cell integrity. Subsequent activation of the ${\beta}$-catenin pathway leads to increased cellular proliferation. In addition, ETBF causes acute and chronic colitis in wild-type mice as well as enhances tumorigenesis in Min mice via activation of the Stat3/Th17 pathway. Currently, ETBF can be detected using a BFT toxin bioassay and by PCR. Advances in molecular biological techniques such as real-time PCR have allowed both researchers as well as clinicians to rapidly detect ETBF in clinical samples. The emergence of more sensitive techniques will likely advance molecular insight into the role of ETBF in colitis and cancer.

Immunostimulatory and Bone Health-Promoting Activities of Litsea japonica Fruit Extract (까마귀쪽나무 열매 추출물의 면역증가 및 뼈 건강 효과)

  • Park, Sung-Jin;Kang, Jun-Chul;Lee, Da-young;Cho, Ju-Hyun;Yoon, Min-Ho
    • Journal of Food Hygiene and Safety
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    • v.35 no.3
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    • pp.284-289
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    • 2020
  • This study was performed with hot water extract (LJF-W) and 70% ethanol extract (LJF-70E) of Litsea japonica fruit to investigate the immunostimulatory activity and bone health-promoting effect of L. japonica fruit. The production of pro-inflammatory mediator (nitric oxide) and pro-inflammatory cytokines (TNF-α, IL-6 and IL-1β) in murine macrophage RAW264.7 cells were estimated to examine the immunostimulatory activity of the fruit extracts. The immunostimulatory activity of LJF-W was higher than that of positive control (geinsenosides). However, there was no effect in LJF-70E. Futhermore, both LJF-W and LJF-70E appeared to stimulate the proliferation of MC3T3-E1 cells, proving the effect as a bone health agent. From this result it could be presumed that L. japonica fruit extracts not only stimulate the immune system, but also the ability to promote bone health.

Physiological Activity of the Fermented Small Black Soybean (Rhynchosia volubilis) with a Solid State Culture of the Bearded Tooth Mushroom (Hericium erinaceum) Mycelia (쥐눈이콩-노루궁뎅이버섯 균사체 발효물의 생리활성)

  • Kim, Hoon;Shin, Ji-Young;Lee, Ah-Rum;Hwang, Jong-Hyun;Yu, Kwang-Won
    • The Korean Journal of Food And Nutrition
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    • v.30 no.6
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    • pp.1348-1358
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    • 2017
  • To enhance the physiological activity of the Rhynchosia volubilis (RV), R. volubilis (RVHE-A) and R. volubilis-added herbal powder (RVHE-B) were fermented with a solid state culture of Hericium erinaceum mycelia (HE). The total isoflavone contents of the non-fermented RV-A ($489.9{\mu}g/g$) and RV-B ($571.1{\mu}g/g$) were remarkably increased in fermented RVHE-A ($1,836.4{\mu}g/g$) and RVHE-B ($1,276.7{\mu}g/g$). In particular, aglycone isoflavones such as daidzein and genistein were significantly higher in the RVHE-A than any other sample. When hot-water (HW) and EtOH extracts (E) were fractionated from the RV and RVHE, both extracts from the RVHE-A were higher than those from the RV-A in total polyphenol and flavonoid contents. However, the RVHE-B-HW showed a lower polyphenol and flavonoid content level than did RV-B-HW. RVHE-A-HW and -E also had more potent ABTS radical scavenging activity than any extract from the non-fermented RV and other ferments (RVHE-B). In the meanwhile, RVHE-A-HW potently stimulated the production of macrophage activation-related cytokines such as $TNF-{\alpha}$, IL-6 and IL-12 ($841.7{\pm}71.3pg/mL$, $3.9{\pm}0.1ng/mL$, $179.3{\pm}30.2pg/mL$) from peritoneal macrophage more than RV-A-HW ($92.5{\pm}1.5pg/mL$, $0.1{\pm}0.0ng/mL$, $37.4{\pm}5.4pg/mL$) as well as RVHE-B-HW ($557.0{\pm}21.3pg/mL$, $1.8{\pm}0.0ng/mL$, $90.0{\pm}10.0pg/mL$). However, all the EtOH extracts did not show significant activity. In addition, the RVHE-A-HW showed a significantly higher intestinal immune system modulating activity through Peyer's patch and GM-CSF production than did any other extract from RV and RVHE-B. In conclusion, these results suggest that the fermented R. volubilis with H. erinaceum mycelia possesses a possible use as an industrial application as functional food or material.