• Korean Journal of Pharmacognosy
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• v.50 no.3
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• pp.175-184
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• 2019

Mast cells are crucial as effector cells in the immediate-type allergic reaction. Lentinus edodes has been the popular edible mushroom in oriental countries and reported to have immunomodulatory, anti-tumor, anti-atherogenic, anti-viral, and anti-allergic activities. However, the roles of L. edodes in mast cell-mediated anaphylactic reaction have not been fully elucidated. In this research, we have demonstrated the effects of the methanol extract of L. edodes (MELE) on mast cell-mediated anaphylaxis-like and anaphylactic reactions. MELE suppressed systemic anaphylaxis-like reaction, plasma histamine levels, and ear swelling response in mice treated with compound 48/80. MELE also suppressed passive systemic and cutaneous anaphylaxis mediated by anti-dinitrophenyl IgE. In accordance with these findings, MELE dose-dependently decreased histamine release from RPMC evoked by compound 48/80 or the antigen-antibody reaction. To clarify the mechanism of degranulation system, intracellular cAMP levels as well as calcium influx in RPMC was evaluated. In compound 48/80-treated RPMC, MELE blocked calcium uptake into the cells. In addition, MELE elevated the intracellular cAMP content and significantly attenuated compound 48/80-induced cAMP reduction in RPMC. Taken together, we propose the clinical use of MELE in mast cell-mediated immediate-type allergic diseases.

• Korean Journal of Otorhinolaryngology-Head and Neck Surgery
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• v.61 no.12
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• pp.637-643
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• 2018

Radioimmunotherapy (RIT) is a therapy that takes advantage of the "cross-fire" effect of emitted radiation by radionuclides conjugated to tumor-directed monoclonal antibodies (mAb) (including those fragments) or peptides. While RIT has been successfully employed for the treatment of lymphoma, mostly with radiolabeled antibodies against CD20 [$^{90}yttrium$ ($^{90}Y$)-ibritumomab tiuxetan; $Zevalin^{(R)}$ and $^{131}iodine$ ($^{131}I)-tositumomab$; $Bexxar^{(R)}$], its use in solid tumors is more challenging, so far. Immuno-PET, a tool for tracking and quantification of mAbs with PET in vivo, is an exciting novel option to improve diagnostic imaging and guide mAb-based therapy. RIT in solid tumors including head and neck cancer may be an alternative treatment with advances in various biological, chemical, and treatment procedures, and it may help to reduce unnecessary exposure and enhance the therapeutic efficacy. Also, immuno-PET based on RIT might play an important role in cancer staging, in patients or targets selection of targeted therapeutics and in monitoring the response of targeted therapeutics as precision medicine. In this review, fundamentals of RIT/immune-PET and current knowledge of the preclinical/clinical trials in RIT for solid tumor including head and neck cancer are reviewed.

• Journal of Animal Science and Technology
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• v.64 no.3
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• pp.588-598
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• 2022

Despite vaccination, equine influenza virus (EIV) and equine herpesvirus (EHV) infections still cause highly contagious respiratory diseases in horses. Recently, concurrent vaccination with EIV and EHV was suggested as a new approach; however, there have been no reports of concurrent vaccination with recombinant canarypox EIV and inactivated EHV vaccines. In this study, we aimed to compare the EIV-specific immune responses induced by concurrent administrations of a recombinant canarypox EIV vaccine and an inactivated bivalent EHV vaccine with those induced by a single recombinant canarypox EIV vaccine in experimental horse and mouse models. Serum and peripheral blood mononuclear cells (PBMCs) were collected from immunized animals after vaccination. EIV-specific serum antibody levels, serum hemagglutinin inhibition (HI) titers, and interferon-gamma (IFN-γ) levels were measured by enzyme-linked immunosorbent assay, HI assay, and quantitative polymerase chain reaction, respectively. Concurrent EIV and EHV vaccine administration significantly increased IFN-γ production, without compromising humoral responses. Our data demonstrate that concurrent vaccination with EIV and EHV vaccines can enhance EIV-specific cellular responses in horses.

• Journal of Life Science
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• v.24 no.2
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• pp.154-160
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• 2014

Ghost cells have been recognized as eliciting humoral and cell-mediated immune responses and have also been predicted to play a role as an immune adjuvant. In this study, we used the intramuscular (IM) route to inject BALB/c mice with four vaccine groups constructed from Salmonella typhimurium ghost (STG) cells originating from different virulent strains and complex STG groups instead of heat-labile toxin (LT)-B, a type of adjuvant. Although the complex STG groups exhibited a response after a short delay, the groups showed final total IgG levels similar to those of the LT-B group, which encodes LT-B from pMMP300. The IgG1 response to the ${\chi}$3339 group was the highest response at 6 weeks, whereas IgG2a responses to the ${\chi}$3339 and JOL389 groups were higher at 6 and 8 weeks compared to those of the LT-B group. The response of vaginal sIgA to the LT-B group was generally higher than that of the other groups, whereas fecal sIgA to the LT-B group exhibited lower responses. Protection to virulent S. typhimurium in all groups was above 80%, which was similar to the LT-B group. Taken together, we suggest that STG complex groups can be used as an immune adjuvant instead of LT-B.

• Pediatric Infection and Vaccine
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• v.4 no.1
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• pp.126-132
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• 1997

Measles outbreak in the world was decreased since measles vaccine had been introduced. Although vaccination rate is high, measles was not eradicated and measles reappeared among vaccinated children. We measured measles-specific antibody from the vaccinated and unvaccinated groups who had experienced apparent measles in the Seongnam city in 1993. The results were as follows. 1) The data included total 126 children (M:F=1 : 1). Age distribution of measles outbreak revealed 6 children in 5yr, 11 in 6yr, 20 in 7yr, 39 in 8yr, 22 in 9yr, 11 in 10yr, 11 in 11yr, and 6 in 12yr. 2) MMR vaccination rate was 78.6%(99/126) in the children who had experienced measles. Positive rate of measles-specific IgM Ab was 80.8% (80/99) among the vaccinated group and among 9E.6.% (25/27) the unvaccinated. 3) Positive rate of measles-specific IgG Ab was 90.9% (90/99) among MMR-vaccinated group, and 85.2% (23/27) in unvaccinated group. In conclusion, measles-specific IgM antibody have been detected more than 1 month in most patients. The relatively high proportion of measles-specific IgM positivity may mean primary vaccine failure. To booster the antibody titers and to prevent measles epidemic in school-aged children, revaccination of measles should be considered.

• Restorative Dentistry and Endodontics
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• v.24 no.1
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• pp.100-115
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• 1999

The purpose of this study was to investigate the distribution of calcitonin gene-related peptide containing nerve fibers in rat pulp after dentinl injury by means of immunohistochemistry and confocal laser scanning microscope. The Spague-Dawley rats weighing about 250-300gm were used. The animals were devided into normal control and experimental groups. Experimental animals were sacrified 1, 2, 4, 7, 10, 21days after dentinal injury (dentin cutting, and then acid etching with 35% phosphoric acid) on the maxillary molar teeth. The maxillary teeth and alveolar bone were removed and immersed in the 4% paraformaldehyde in 0.1M phosphate buffer (pH 7.4), then were decalcified with 15% formic acid for 10 days. Serial frozen $50{\mu}m$ thick sections were cut on a cryostat. The rabbit CGRP antibody was used as a primary antibody with a dilution of 1:2000 in 0.01M PB. The sections were incubated for 48 hours at $4^{\circ}C$, and placed into biotinylated antirabbit Ig G as a secondary anti body with dilution of 1:200 in 0.01M PB and incubated in ABC(avidin-biotin complex). The peroxidase reaction was visualized by incubating the sections in 0.05% 3,3 diaminobenzidine tetrahydrochloride containing 0.02% $H_2O_2$. For the confocal laser scanning microscopic examination, Primary antibody reaction was same as immunoperoxidase stainning, but fluorescein isothiocyanate(FITC)-conjugate antirabbit IgG as a secondary antibody was used. The confocal laser scanning microscope was used for the examination. A series of images of optical sections was collected with a 20x objective at $3{\mu}m$ intervals throughout the depth of specimen. FITC fluerescence was registrated through a 488nm and 568nm excitation filter, and images were saved on optical disk. The stereoscopic images and three dimentionnal images were reconstructed by computer software, and then were analyzed. The results were as follows : 1. In normal control group, CGRP containing nerve fibers were coursed through the root with very little branching, and then formed a dense network of terminals in coronal pulp. 2. A slight increase in CGRP containing nerve fibers at 1 and 2day postinjury was noted subjacent to the injury site. In the 4day group, there were an extensive increase in the number of reactive fibers, followed by a partial return toward normal levels at 7~10 day postinjury, and return by 21days. 3. The sprouting of the CGRP containing nerve fibers was evident within 2day after dentinal injury, and by 4days there was a maximal increased, but was decreased at 7days and returned to normal 10~21 day postinjury. 4. In confocal laser scanning microscopic exammination, the distinct distribution pattern and sprouting reaction of CGRP containing nerve fibers were observed in stereoscopic images and three dimentional images. These results suggest that CGRP containing nerve fiber can be important role in the response to dental injury and pain regulation.

• The Korean Journal of Nuclear Medicine
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• v.36 no.5
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• pp.298-305
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• 2002

Purpose: Bone marrow scintigraphy has been used to evaluate the status of bone marrow in various hematologic disorders. We have analyzed the peripheral distribution pattern and central uptake ratio of bone marrow using anti-NCA-95 monoclonal antibody and the their correlation in patients with various hematologic malignancy. Materials and Methods: Bone marrow immunoscintigraphy was performed using Tc-99m anti-granulocyte monoclonal mouse antibody BW 250/183. Fifty patients were classified into four groups; 11 with acute myelogenous leukemia, 12 with acute lymphocytic leukemia, 15 with lymphoma and 12 with myelodysplastic syndrome. The extension of peripheral bone marrow was categorized into four grades: I, II, III and IV. The activity of central bene marrow was expressed as sacroiliac uptake ratio. Results: The patient's number was 4 in grade I, 27 in grade II, 15 in grade III and 4 in grade IV according to extension of peripheral bone marrow. The extension of peripheral bone marrow was marked (58% in grade III and IV) in myelodysplastic syndrome and acute lymphocytic leukemia and mild (93% in grade I and II) in lymphoma. Sacroiliac uptake ratio was highest ($8.5{\pm}4.0$) in myelodysplastic syndrome and lowest ($5.9{\pm}3.6$) in acute myelogenous leukemia, but not significantly different among four patient groups (p>0.05). Sacroiliac uptake ratio of whole patients was significantly different among four grades (p=0.003), but there was not correlated between grade of peripheral bone marrow and sacroiliac uptake ratio (r=0.05). Conclusion: The pattern of peripheral bone marrow extension and activity of central hemopoietic marrow were not specific to the disease entities. Response of hemopoietic bone marrow may be evaluated on both peripheral and central bone marrow in patients with hematologic malignancy.

• The Journal of the Korean Society for Microbiology
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• v.18 no.1
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• pp.73-85
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• 1983

The advantages of the enzyme-linked immunosorbent assay(ELISA) are its sensitivity and its simplicity in detecting IgM and IgG antibodies. For applying the ELISA to the diagnosis of typhoid fever, first of all, experiments were performed to determine which concentration of killed whole cell antigens and lipopolysaccharide(LPS) antigens of S. typhi(0.901 w) were optimally coated to the wells of the polystyrene and polyvinylchloride microplate, using the hyperimmune sera from rabbits against S. typhi. By using both kinds of antigens of S. typhi adsorbed to the ELISA microplate, the changing patterns of IgG and IgM antibodies in the sera from rabbits responding to the killed whole cell antigens of S. typhi(0901 w) during the prolonged immunization were serially traced by the ELISA. At the same time, the level of antibodies against S. typhi in sera fron patients with typhoid fever and from normal healthy persons were measured by the ELISA employing the killed whole cell antigens and LPS antigens as the coating antigens. The results obtained were summerized as follow: 1. The optimal concentration of the killed whole cell antigens, which were more easily adsorbed to the polystyrene plate than the polyvinylchloride plate, was $10^8cells/ml$ of carbonate buffer(pH. 9.6) on the wells of the polystyrene plate when treated at $37^{\circ}C$ for 4 hours. On the other hand, the optimal concentration of lipopolysaccharide antigens, which were adsorbed only to the polyvinylchloride plate, was $100{\mu}g/ml$ of carbonate buffer(pH. 9.6) on the wells of the polyvinylchloride plate when treated at $37^{\circ}C$ for 4 hours. 2. IgM antibody response were dominating in rabbits responding to the killed whole cell antigens of S. typhi(0.901 w), and were more specific to the LPS antigens than to the killed whole cell antigens in the ELISA. Good correlations were made between the IgM titers by the ELISA and the aggglutinating titers of sera from the immunized rabbits. 3. Both IgG and IgM agglutination titers by the ELISA in sera from most of patients with typhoid fever were above 1:320 but those in sera from most of normal, healthy persons were below 1:80. 4. There were close correlations between the antibody titers by the ELISA and the agglutinating titers to the killed whole cell antigens in the tested human sera, IgM titers being more correlated with the agglutinating titers than IgG titers. But a little correlations were made between the antibody titers by the ELISA and the agglutinating titers to the LPS antigens. 5. IgM titers in the tested human sera were similar to IgG titers detected by the ELISA employing the killd whole cells antigens and the LPS antigens. 6. Good correlations were made between the antibody titers demonstrated by the ELISA performed on the killed whole cell antigens and the LPS antigens as the different, coating antigens on the ELISA microplates.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.33 no.1
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• pp.55-59
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• 2000

A specific and sensitive sandwich enzyme-immunoassay (EIA) using Avidin-Biotin complex was developed for the measurement of GTH II levels in pituitary content and pituitary cell culture medium of the rainbow trout-(Oncorhpchus mykiss). Biotin-salmon GTH II rabbit IgG (sefondary antibody) wai purified by a protein A sepharose affinity chromatography column and that was biotinylated by using Biotin-N-hydroxysuccinimide ofter (BNHS). Non-biotin salmon GTH II rabbit IgG (first antibody) was obtained only through a protein A sepharose affinity chromatography column. The assay was performed by the so-called 'sandwich' method using a microtiter plate, A dose-response curve was obtained between $0.12 to 125 ng/ml$ of salmon GTH II. The displacement curves for pituitary extraction and pituitary cell culture medium of testosterone-treated rainbow trout were Parallel to the standard curie. The intra-assay and inter-assay coefficients of variation (CV) were $8.2{\%} (N=5) and 12.5{\%} (N=6)$, respectively, This assay system was used to measure the amount of GTH II that accumulated in the culture medium of dispersed pituitary cells in testosterone-treated immature rainbow trout, The accumulation was increased with the amount or salmon gonadotropin-releasing hormone. GTH II values determined by the present method were well correlated with those determined by radioimmunoassay. As a result, this assay system was found to be suitable for the measurement of GTH II for pituitary extraction and pituitary culture medium in many salmonid fishes.

• Journal of Periodontal and Implant Science
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• v.29 no.2
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• pp.333-350
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• 1999

The modulation of leukocyte cell surface adhesion molecules may influence the development of cellular events that determine the course of the inflammatory process. Direct interaction between activated T cells and monocytes resulted in a large production of $IL-1{\beta}$ by monocytes. In this reactions, adhesion molecules play an important part, yet the role of them in Tmonocytes interaction remain unclear. This study was undertaken in an effort to elucidate, 1) the influence of 1.25(OH)$_2D_3-induced$ differentiation on the monocyte responsiveness to direct contact with T lymphocytes, and 2) the role of adhesion molecules on the T-monocyte direct interaction. Initially, I observed that direct contact of monocyte cell line THP-1 with stimulated fixed T cell line HuT78 markedly induces IL-1${\beta}$ production by THP-1. $IL-1{\beta}$ production was higher when THP-1 had been previously exposed to 1.25(OH)$_2D_3$ as compared to control, with ${\alpha}$- 1.25(OH)$_2D_3$ dose-dependent and exposure time-dependent manner. It was shown that 1.25(OH)$_2D_3$ also increased the expression of ${\beta}_2$ integrin adhesion receptor Mac-1(CD11b/CD18) dose- and timedependently, but did not increase the expression of human leukocyte antigen- D(HLA-D) and intercellular adhesion molecule-1(ICAM-1). The $IL-1{\beta}$ producing activity of THP-1 cells correlated well with the ability to induce the Mac-1 expression on THP-1 surface. Monoclonal antibody raised against relevant cell surface glycoproteins on THP-1 were tested for their ability to block the response of THP-1 to T cells. Antibody to Mac-1 only partially blocked $IL-1{\beta}$ production by THP-1, whereas antibodies to ICAM-1 and HLA-D did not. These data indicate that regulation of Mac-1 expression on THP-1 cells can alter the responsiveness of these cells to contact by activated T cells, however other unknown structures on the THP-1 cells may be involved in this process also.