• Clinical and Experimental Vaccine Research
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• 제12권1호
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• pp.32-46
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• 2023

Purpose: The present study aimed to compare the immune-enhancing potential of gold nanoparticles (AuNPs) to Alum against rabies vaccine and the related immunological, physiological, and histopathological effects. Materials and Methods: Alum and AuNPs sole and in combination with rabies vaccine were used at 0.35 mg/mL and 40 nM/mL, respectively. Rats used were categorized into six groups (20/each): control rats, rabies vaccine, aluminum phosphate gel, rabies vaccine adsorbed to Alum, AuNPs, and rabies vaccine adjuvant AuNPs. Results: Liver and kidney functions were in the normal range after AuNPs and Alum adjuvanted vaccine compared to control. Interleukin-6 and interferon-γ levels were significantly increased in groups immunized with Alum and AuNPs adjuvanted vaccine, the peak level was in the case of AuNP adjuvanted vaccine on the 14th day. Ninety days post-vaccination, total immunoglobulin G (IgG) against adjuvanted rabies vaccine showed a significantly elevated antirabies IgG with AuNPs and Alum adsorbed vaccine compared with unadjuvanted one. The total antioxidant capacity, malondialdehyde (MDA) levels, superoxide dismutase, and glutathione peroxidase activities were significantly increased post-adjuvanted AuNPs adjuvanted vaccine vaccination than in Alum adsorbed vaccine, while MDA was significantly decreased. The histopathological examination revealed detectable alterations post-AuNPs and Alum adjuvanted vaccine immunization compared with liver and kidney profiles post-administration of unadjuvanted and non-immunized groups, meanwhile, splenic tissue revealed hyperplasia of lymphoid follicles indicating increased immune reactivity. Conclusion: The AuNPs are promising enhancers of the immune response as Alum, and the undesirable effects of AuNPs could be managed by using suitable sizes, shapes, and concentrations.

• IMMUNE NETWORK
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• 제4권1호
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• pp.38-43
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• 2004

Backgroud: Immunotherapy using dendritic cells (DC) loaded with tumor antigens may represent a potentially effective method for inducing antitumor immunity. We evaluated the effectiveness of DC-based antitumor immune response in various conditions. Methods: DC were cultured from peripheral blood mononuclear cells (PBMNC) in myelogenous leukemia (ML) and lysates of autologous leukemic cells are used as tumor antigen. The effectiveness of interleukin-12 (IL-12) and CD40L (CD154) on the antigen presenting function of lysates-loaded DC was analyzed by proliferation, cytokine production, and cytotoxicity tests with activated PBMNC (mainly lymphocytes). For generating antigen-loaded DC, direct fusion of DC with ML was studied. Results: Antigen loaded DC induced significantly effective antitumor immune response against autologous leukemic cells. Administration of IL-12 on the DC based antitumor immune response showed higher proliferation activity, IFN-$\gamma$ production, and cytotoxic activity of PBMNC. Also, fused cell has a potent antitumor immune response. Conclusion: We conclude that lysates-loaded DC with IL-12 may be effectively utilized as inducer of antitumor immune reaction in ML and in vivo application with DC-based antitumor immunotherapy or tumor vaccination seems to be feasible.

• Asian Pacific Journal of Cancer Prevention
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• 제15권21호
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• pp.9295-9300
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• 2014

Interleukin-17A (IL-17A) is a multifunctional cytokine which plays a crucial role in the initiation and progression of cancer. To date, several studies have investigated associations between IL-17A -197G>A (rs2275913) polymorphism and digestive cancer risk, but the results remain conflicting. We here aimed to confirm the role of this single nucleotide polymorphism (SNP) in susceptibility to digestive cancer through a systemic review and meta-analysis. Ten eligible case-control studies were identified by searching electronic databases, involving 3,087 cases and 3,815 controls. Odds ratios (ORs) and corresponding 95% confidence intervals (CIs) were used to estimate the strength of the association. The results of overall analyses indicated that the variant A allele was associated with an increased risk of digestive cancer (AA vs GG: OR=1.51, 95%CI=1.18-1.93; AA vs GG+GA: OR=1.45, 95%CI=1.12-1.87; A vs G: OR=1.21, 95%CI=1.05-1.39). In subgroup analysis stratified by specific cancer type, elevated risk among studies of gastric cancer was found (AA vs GG: OR=1.68, 95%CI=1.24-2.28; AA vs GG+GA: OR=1.62, 95%CI=1.16-2.26; A vs G: OR=1.23, 95%CI=1.04-1.46). According to ethnicity, there was evidence in the Asian populations for an association between this polymorphism and cancer risk (GA vs GG: OR=1.19, 95%CI=1.05-1.36; AA vs GG: OR=1.56, 95%CI=1.15-2.12; AA+GA vs GG: OR=1.28, 95%CI=1.13-1.44; AA vs GG+GA: OR=1.42, 95%CI=1.01-2.00; A vs G: OR=1.24, 95%CI=1.08-1.44), while in the Caucasian populations an association was found in the recessive model (AA vs GG+GA: OR=1.62, 95%CI=1.17-2.24). In conclusion, the results of this meta-analysis suggest that the IL-17A -197G>A polymorphism contributes to an increased risk of human digestive cancer, both in the Asian and Caucasian populations and especially for gastric cancer.

• 한국산업보건학회지
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• 제23권4호
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• pp.393-401
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• 2013

Objectives: Endotoxins in dust generated in occupational settings is known to contribute to the occurrence of respiratory illness among workers. The relationship between the level of endotoxins in total dust or respirable particulates collected from swine farms and immunological markers related with respiratory allergy was evaluated among swine husbandry workers. Materials and Methods: Peripheral blood samples were collected from ten workers at ten swine farms at Gyeonggi province, Korea. Peripheral mononuclear cells were stimulated with phorbol 12-myristate 13-acetate and ionomycin for 48 hours. The levels of various cytokines produced at culture supernatants were determined using a commercially available ELISA kit. The concentration of particulate matter($PM_{10}$) in the indoor air of the swine farms was evaluated using a PVC membrane filter and mini volume air sampler, and endotoxin levels in the dust were measured by Limulus Amebocyte Lysate Kinetic QCL method. Results: Levels of endotoxins in the total dust were categorized into high(geometric mean: $109.35EU/m^3$) and low concentrations (geometric mean: $0.95EU/m^3$) for five swine farms. Interleukin-4 levels were higher in the high endotoxin group than in the low endotoxin group, while interferon-${\gamma}$ levels were lower in the high endotoxin group than in the low endotoxin group. The ratio (interferon-${\gamma}$ to interleukin-4), indicating immunologic skewedness against allergic reactivities, was lower in the high endotoxin group($1.15{\pm}0.60$) than the low endotoxin group($3.09{\pm}2.38$). In addition, the level of interleukin-13, another cytokine contributing to the occurrence of allergic responses, was significantly higher in the at the high endotoxin group($1.12{\pm}0.37ng/m{\ell}$) than in the low endotoxin group($0.37{\pm}0.04ng/m{\ell}$). Hematologic assessment showed significantly lower cellularity in the number of total leukocytes, neutrophils, and eosinophils in the high endotoxin group than in the low endotoxin group. Conclusions: Even though a sufficient number of swine workers and farms were not investigated, this study generlly suggests that the immunological function of swine farm workers exposed to high levels of endotoxin could be modulated toward allergic reactivities.

• 한국식품영양과학회지
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• 제41권12호
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• pp.1671-1676
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• 2012

9 종류의 종자 중 대식세포를 자극하여 NO 생성능이 높은 메밀, 민들레, 봉선화, 해바라기 4종의 종자를 선별하였다. 선별된 4종의 종자 추출물이 RAW 264.7 세포를 활성화시켜 면역을 증진시키는 효과를 알아보기 위해 RAW 264.7 세포와 T세포를 이용하여 면역 활성능 관련 지표를 조사하였다. 4종의 종자를 대식세포에 처리하였을 때 면역 활성의 지표가 되는 NO, cytokine(TNF-${\alpha}$, IL-$1{\beta}$, IL-6, IL-10)의 생성이 추출물을 처리하지 않은 대조군에 비해 증가되었고, Molt-4 세포에 처리하였을 때 대조군에 비해 세포가 증식되었다. 이와 같은 결과는 종자 추출물을 섭취하였을 때 외부로부터의 어떠한 자극이 있기 이전에 체내의 모든 조직에 분포하면서 1차적으로 이물질을 제거하는 대식세포를 자극하여 cytokine 등의 면역매개물질을 생성하여 인체의 비특이적 면역반응을 증가시킴으로써 항원을 공격, 제거하는 등의 작용을 통해 자연 면역반응에 있어 중요한 역할을 할 수 있을 것으로 판단된다.

• 한국가금학회지
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• 제48권3호
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• pp.111-122
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• 2021

최근에 IL-34가 MCSFR에 대한 두 번째 기능적 리간드로 확인되었으며, M-CSFR에 대한 결합을 통해 IL-34는 M-CSF와 유사한 기능을 공유한다. 지금까지 닭의 IL-34에 대한 실험적 연구가 아닌 예측된 서열로만 보고되었으며, 닭의 IL-34 기능에 대한 정보는 아직 부족하다. 닭 IL-34의 잠재적 생물학적 기능을 구명하기 위하여, 다양한 품종의 닭, 세포주에 대한 괴사성 장염, 살모넬라 및 E. coli 유래의 LPS 등을 처리하여 관찰하였다. 또한 닭의 IL-34와 M-CSF 재조합 단백질 생산 및 이를 이용한 전염증성 사이토카인 유도를 위하여 클로닝 및 재조합 단백질을 발현 및 정제하였다. 특히 관절이상 육계(unknown cause)에 대한 IL-34, M-CSF, 그리고 M-CSFR 유전자의 발현이 대조구보다 유의하게 증가하였으나, 병원균 자극 조직의 경우 많은 조직에서 감소함을 보였다. M-CSFR의 발현은 in vitro에서 IL-34와 M-CSF 재조합 단백질에 의해 증가함을 보였으며, IFN-γ은 재조합 단백질 M-CSF을 제외한 IL-34에 의해 증가하였다. 하지만, IL-12 발현은 유의적인 차이가 없었으며, IL-1β의 경우는 감소하였다. 이 결과는 IL-34와 M-CSF가 고전적인 대식세포와 대체 대식세포 모두에서 역할을 한다고 할 수 있다. 결론적으로, in vitro와 in vivo 실험을 통하여 병원균 처리 시 닭의 IL-34 발현을 관찰하였으며, IL-34 재조합 단백질이 대식세포에서와 전염증성과 항염증성 반응에 중요한 역할을 함을 증명하였다. 추후에 IL-34의 사이토카인, 케모카인 그리고 염증반응 경로 등에 대한 추가 연구가 필요하다고 판단된다.

• 한국발생생물학회지:발생과생식
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• 제21권4호
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• pp.361-370
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• 2017

Koi herpesvirus (KHV), also known as Cyprinid herpes virus 3 (Cyprinid 3) is lethal disease in common carp and koi (Cyprinus carpio). Two different groups (KK and RK) were infected KHV by intraperitoneal injection. Fish for gene expression analysis were sampled at 0 h, 12 h, 24 h, 48 h and 72 h post infection (p.i). The results showed that two immune related gene, Interferons (INFs) ${\alpha}{\beta}$ and Interleukin (IL)-12 p35 induced a high response in RK. The IL-12 p35 cytokine and Toll-like receptor (TLR) 9 were significantly high expressed on 48 h post infection (p.i) in RK as compared to the KK. The histopatological examination reveals focal necrosis in liver and infiltrate of lymphocytes in spleen of KK as compared to the RK. In immunohistochemistry analysis, the KHV protein high expressed in the infected kidney cell and slenocyte of KK. Therefore, the expression of IL-12 p35, IFN ${\alpha}{\beta}$ and TLR 9 may provide a potentially genes related with KHV resistance in Koi and red common carp ${\times}$ koi.

• IMMUNE NETWORK
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• 제12권1호
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• pp.1-7
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• 2012

Interleukin-24 (IL-24) belongs to the IL-10 family of cytokines and is well known for its tumor suppressor activity. This cytokine is released by both immune and nonimmune cells and acts on non-hematopoietic tissues such as skin, lung and reproductive tissues. Apart from its ubiquitous tumor suppressor function, IL-24 is also known to be involved in the immunopathology of autoimmune diseases like psoriasis and rheumatoid arthritis. Although the cellular sources and functions of IL-24 are being increasingly investigated, the molecular mechanisms of IL-24 gene expression at the levels of signal transduction, epigenetics and transcription factor binding are still unclear. Understanding the specific molecular events that regulate the production of IL-24 will help to answer the remaining questions that are important for the design of new strategies of immune intervention involving IL-24. Herein, we briefly review the signaling pathways and transcription factors that facilitate, induce, or repress production of this cytokine along with the cellular sources and functions of IL-24.

• 한국환경과학회지
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• 제18권12호
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• pp.1391-1398
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• 2009

In this study, we investigated the suppressive effects of ore minerals on the allergic cell damages and oxidative cell damages. The ore minerals significantly reduced the productions of tumor necrosis factor-alpha (TNF-${\alpha}$) and interleukin-4 (IL-4) in rat basophilic leukemia cells challenged with 2,4-dinitrophenol-bovine serum albumin (DNP-BSA). Lipoxygenase activity was also reduced by the ore minerals. Moreover, the ore minerals showed weak protective effects on the oxidative damage induced by hydrogen peroxide in pig kidney cells and retinal ganglion cells. Photohemolysis of erythrocytes in the presence of rose-bengal as a sensitizer was also inhibited by ore minerals. These results suggest that the ore minerals may be useful as the protectant for allergic and oxidative cell damages.

• Preventive Nutrition and Food Science
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• 제22권2호
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• pp.100-106
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• 2017

To elucidate new biological ingredients in cold-brew coffee extracted with cold water, crude polysaccharide (CCP-0) was isolated by ethanol precipitation, and its immune-stimulating activities were assayed. CCP-0 mainly comprised galactose (53.6%), mannose (15.7%), arabinose (11.9%), and uronic acid (12.4%), suggesting that it might exist as a mixture of galactomannan and arabinogalactan. CCP-0 significantly increased cell proliferation on both murine peritoneal macrophages and splenocytes in a dose dependent manner. CCP-0 also significantly augmented nitric oxide and reactive oxygen species production by murine peritoneal macrophages. In addition, macrophages stimulated by CCP-0 enhanced production of various cytokines such as tumor necrosis factor-${\alpha}$, interleukin (IL)-6, and IL-12. In an in vitro assay for intestinal immune-modulating activity, CCP-0 showed higher bone-marrow cell-proliferation activity through Peyer's patch cells at $100{\mu}g/mL$ than the negative control. These results suggest that CCP-0 may potentially enhance macrophage functions and the intestinal immune system.