• Title/Summary/Keyword: antigenicity tests

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Antigenicity Studies of the Aqueous Extract of Fresh Ginseng in Guinea Pigs

  • Lee, Jong-Wha;Rhee, Man-Hee;Park, Jong-Il;Han, Sang-Seop
    • Korean Journal of Pharmacognosy
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    • v.25 no.1
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    • pp.35-40
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    • 1994
  • Aqueous extreact of fresh ginseng (AFG) was examined for the antigenicity in Hartley guinea pigs in comparision with ovalbumin (OVA). When guinea pigs were sensitized with AFG emulsified with complete Freund's adjuvant (CFA), these animals showed negative reactions in active systemic anaphylaxis (ASA), active cutaneous anaphylaxis (ACA) and passive cutaneous anaphylaxis (PCA) tests and passive hemagglutination (PHA) reaction. On the contrary, when guinea pigs were sensitized with OVA emulsified with CFA as positive controls, these animals disclosed positive reactions in ASA, ACA and PCA tests and PHA reaction. From these results, AFG was considered not to possess antigenic properties in guinea pigs. In addition, the dose levels of AFG empolyed in the present experiment were confirmed not to suppress immune reactions.

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Antigenicity of EPO (Erythropoietin) in Guinea Pigs, Mice and Rats (기니픽, 마우스 그리고 랫드에서 EPO (Erythropoietin)의 항원성에 관한 고찰)

  • 이학모;남정석;제정환;이석만;양재만;강병철;박재학;송동호;유선희
    • Toxicological Research
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    • v.13 no.1_2
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    • pp.153-156
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    • 1997
  • The antigenicity of EPO (erythropoietin) was investigated in guinea pig, mice and rats. Antigenicity tests-active systemic anaphylaxis (ASA), passive cutaneous anaphylaxis (PCA) of this materials were performed according to the established Regulation of Korean National Institute of Safety Research (1996, 4, 16). The results were followed: 1. After sensitizaion with EPO emulsified with complete Freund's adjuvant (CFA), guinea pigs didn't show any anaphylatic shock symptom in the ASA test 2. After sensitization with antisera of EPO sensitized mice, blue spots were observed on the hypodermis of back of rats in the PCA test, but diameter of each spot was smaller than 5 mm. From the results of this investigation, the antigenicity of EPO was negative under the present experimental condition.

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ANTIGENICITY TEST OF COPTIS RHIZOME AND CROTON TIGLIUM L. EXTRACTS(CP-2) IN GUINEA PIG AND RABBITS

  • Kang, Kyung-Sun;Cho, Jae-Jin;Kim, Hyung-Ook;Lee, Yong-Soon;Lim, Yoon-Kyu
    • Toxicological Research
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    • v.8 no.1
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    • pp.139-143
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    • 1992
  • Antigenicity tests-ASA(Active Systemic Anaphylaxis), PSA(Passive Systemic Anaphylaxis), PCA(Passive Cutaneous Anaphylaxis)-of CP-2(Green cross Co). were performed according to the established regulations of National Institute of Safety Research. The results were as follows. 1. No specic clinical signs related anaphylaxis were observed, therefore, it was considered that CP-2 had not antigenicity in guinea pigs and rabbits. 2. No blue spots were observed on the back of guinea pig in the PCA test` CP-2 related IgE was not produced.

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Antigenicity of HRccine (HFRS-vaccine) in Guinea Pigs and Mice (기니픽과 마우스에서 HRccine(HFRS 바이러스 백신)의 항원성 시험)

  • 백영옥;손정진;안세헌;김태성;이상옥;이영수;조정식
    • Toxicological Research
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    • v.11 no.1
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    • pp.157-159
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    • 1995
  • A study on antigenicity of HRccine (formalin inactivated HFRS virus vaccine) was investigated in guinea pigs and mice. As a part of the safety evaluation of the HRccine, antigenicity tests were carried out according to the Estabilish Regulations of National Institute of Safety Research. In active systemic anaphylaxis (ASA) test no sign was detected when sensitized with up to 120 clinical dose and challenged with up to 1200 clinical dose in guinea pigs. In passive systemic anaphylaxis test guinea pigs showed no sign. In passive cutaneous anaphylaxis (PCA) test, HRccine specific IgE antibody was not detected when sensitized and challenged with up to 1200 clinical dose. Conclusively, there was no adverse antigenic potential at the clinical dose of 120 clinical dose alone and 120 clinical dose with Al(OH)3.

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Antigenicity Test of Bovine Somatorophin(BST) in Guinea pigs and Rabbits (기니픽과 토끼에서 소성장 홀몬(BST)의 항원성에 관한 시험)

  • 강경선;이영순
    • Journal of Food Hygiene and Safety
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    • v.6 no.3
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    • pp.179-183
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    • 1991
  • Antigenicity tests-ASA(Active Systemic Anaphylaxis), PSA(Passive Systemic Anaphylaxis), PCA(Passive Cutaneous Anaphylaxis)- of Bovine Somatotrophine(BST, Lucky Ltd.) were performed according to the established regulations of National Institude of Safety Research. The results were as follows: 1. No specific clinical signs related anaphylaxis were observed. Therefore, it was considered that BST has no antigenicity in guinea pigs and rabbits. 2. No blue spots were observed on the back of guinea pig in the peA test; BST-related IgE was not produced.

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Antigenicity Study of CFA-001, cefazolin, a cephalosperin Derivative Produced by an :Enzymatic Semisynthesis

  • Park, Jong-Il;Jeong, Tae-Cheon;Kim, Hyoung-Chin;Han, Sang-Seop;Roh, Jung-Koo;Kim, Jeong-Hwan;Jeon, Yeong-Joong;Kim, Dal-Hyun;Kim, Je-Hak;Park, Kwan-Ha
    • Biomolecules & Therapeutics
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    • v.5 no.1
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    • pp.48-52
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    • 1997
  • The antigenic potential of CFA-001, cefazolin, a cephalosporin derivative produced by an enzy-matic semisynthesis, was determined in Hartley guinea pigs. A battery of tests employed consisted of active systemic anaphylaxis (ASA), passive cutaneous anaphylaxis (PCA), and indirect hemagglutination test (IHA). The results were as follows: 1) In ASA, no signs attributable to anaphylaxis was observed in guinea pigs sensitized with CFA-001, whereas OVA-sensitized animals induced severe anaphylactic symptoms; 2) guinea pigs did not produce antibodies against CFA-001 when sensitized with or without Freund's complete adjuvant (FCA) in homologous PCA tests. Meanwhile, antibodies against ovalbumin (OVA) were clearly detected; 3) No CFA-001-specific hemagglutination was observed in the IHA using sera obtained from CFA-001- sensitized guinea pigs. These results suggest that CFA-001 has no antigenicity potential in guinea pigs.

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Antigenicity of Recombinant Human Erythropoietin in Guinea Pigs (기니픽에서 재조합 Erythropoietin의 항원성시험)

  • 백남진;김달현;임동문;김영훈;이동억;김현수;박관하
    • Toxicological Research
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    • v.11 no.1
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    • pp.77-80
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    • 1995
  • Antigenic potential of genetically-engineered human erythropoietin (EPO) was assessed in guinea pigs (active systemic anaphylaxis [ASA] ; passive cutaneous anaphylaxis [PCA]) and in vitro (hemagglutination test [PHA]). In ASA, EPO at 70~700 U/kg elicited a weak anaphylactic response tvhereas the positive control ovalbumin (OVA) did cause intensive responses leading to death in 40% animals. However, the extract of CHO cells, to which EPO gene was introduced, did not cause any symptom. In PCA and PHA tests, neither EPO nor CHO cell extract induced positive responses. OVA, in contrast, produced high titers in both PCA and PHA tests. It was concluded that, in light of the fact that EPO was slightly antigenic only in ASA but not in PCA or PHA and also that human EPO is a foreign protein to guinea pigs, the present EPO may not be antigenic in humans.

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A Study on Antigenicity of G009, a Polysaccharide Isolated from Gandoderma lucidum IY009 in Mice and Guinea pigs (영지의 단백다당체 G009의 마우스와 기니픽에 있어서의 항원성에 관한 연구)

  • Park, Jong-Il;Jeong, Taw-Cheon;Cha, Shin-Woo;Shin, Ho-Chul;Jeong, Hoon;Kim, Su-Ung;Han, Sang-Seop
    • Biomolecules & Therapeutics
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    • v.4 no.1
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    • pp.1-6
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    • 1996
  • In the present study, the antigenic potential of G009, a polysaccharide isolated from Ganoderma lucidum IY009, was determined in BALB/C mice and Hartley guinea pigs. Antigenicity tests, including passive cutaneous anaphylaxis (PCA), active systemic anaphylaxis (ASA) and indirect hemagglutination test (IHA) were performed according to the established guidelines of National Institute of Safety Research. The results were as follows: 1. Mice showed no production of antibodies against G009 sensitized with an adjuvant, aluminum hydroxide gel (alum), when judged by the heterologous PCA test in rats. Meanwhile, antibodies against ovalbumin (OVA) sensitized with alum were clearly detected. 2. In the studies with guinea pigs, both the sensitization of G009 alone and of G009 with complete Freund's adjutant (CFA) did not produce positive reactions in homologous PCA. In the case of ASA, however, G009 alone and G009 with CFA produced positive reactions. 3. No G009 specific reaction was observed in an IHA assay using sera isolated from G009 sensitized mice. These findings suggest that G009 have no antigenicity potential in mice but may have weak antigenicity in guinea pjgs.

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Acute Toxicity and Antigenicity of Guamerin (Guamerin의 단회투여독성 및 항원성 평가)

  • 조명행;김민영;손장원;배미옥;김정현;신민기;방명주;김경연;최승진
    • Toxicological Research
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    • v.16 no.1
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    • pp.83-87
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    • 2000
  • This study was carriet out to evaluate the acute intravenous toxicity and antigenicity of Guamerin, newly developed by Mogam Biotechnology Research Institute (MBRI). In acute intravenous toxicity test, ICR mice were administered intravenously with single dose of 1,000mg/kg, and body weights and clinical signs were observed for 14 days. No dead animal, clinical signs, body weight change and abnormal autopsy findings were found in control and Gumerin treated group. Therefore, the 50% lethoal dose (LD50) of Guamerin for ICR mice was more than 1,000mg/kg on intravenous route for male and female. And the antigenic potential of Guamerin was examined by active systemic anaphylaxis(ASA) and passive cutaneous anaphylaxis(PCA) tests. In the ASA test, low and high doses (10 and 100ug/animal, respectiwely) of Guamerin were administed subcutaneously to guinea pigs for 9 times 3 weeks. All experimental groups showed negative responses whereas the positive control group given ovalbumin plus Freunds complete adjuvant (FCA) showed severe anaphylactic responses. PCA test using rats with mice anti-serum against Guamerin, low and high doses(10 and 100 ug/animal, respectively) of Guamerin were administered to mice for 9 times in 3 weeks. The anti-serum against Guamerin was administed intradermally at the back of rats, however, any positive responses were not detected in the experimental groups. These results strongly indicate that Guamerin does not induce IgE production and is not a PCA reaction inducer under these experimental conditions.

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A Study on Antigenicity of Recombinant Human Interferon $\beta$ (LB00013) in Mice and Guinea Pigs

  • Park, Jong-Il;Jeong, Tae-Cheon;Cha, Shin-Woo;Shin, Ho-Chul;Han, Sang-Seop
    • Toxicological Research
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    • v.12 no.1
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    • pp.81-86
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    • 1996
  • Antigenicity of recombinant human interferon $\beta$(LB00013), a newly developed drug for anti-cancer and anti-viral therapeutic use, was investigated in mice and guinea pigs. The following results were obtained: 1. Mice showed no production of antibodies against LB00013 sensitized with aluminum hydroxide gel (Alum) as an adjuvant, when judged by the heterologous passive cutaneous anaphylaxis (PCA) test in rats. Meanwhile, antibodies against ovalbumin (OVA) sensitized with Alum were clearly detected. 2. In guinea pigs, the sensitization of neither LB00013 only nor LB00013 with complete Freund's adjuvant (CFA) produced positive reactions in the homologous active systemic anaphylaxis (ASA) and the PCA tests. Meanwhile, the sensitization of OVA with CFA produced positive reactions in both PCA and ASA. 3. A LB00013-specific reaction was not observed in an indirect hemagglutination(IHA) assay using sera isolated from LB00013 sensitized mice. The present results suggested that LB00013 may have no antigenic potential in mice and guinea pigs.

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