• Journal of Radiation Protection and Research
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• 제38권4호
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• pp.179-184
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• 2013

The biological effects of radiation are dependent on the dose rate and dose of radiation. In this study, effects of dose and dose rate using whole body radiation on plasma cytokines and blood count from male BALB/c mice were evaluated. We examined the blood and cytokine changes in mice exposed to a low (3.49m Gy $h^{-1}$) and high (2.6 Gy $min^{-1}$) dose rate of radiation at a total dose of 0.5 and 2 Gy, respectively. Blood from mice exposed to radiation were evaluated using cytokine assays and complete blood count. Peripheral lymphocytes and neutrophils decreased in a dose dependent manner following high dose rate radiation. The peripheral lymphocytes population remained unchanged following low dose rate radiation; however, the neutrophils population increased after radiation. The sera from these mice exhibited elevated levels of flt3 ligand and granulocyte-colony-stimulating factor (G-CSF), after high/low dose rate radiation. These results suggest that low-dose-rate radiation does not induce blood damage, which was unlike high-dose-rate radiation treatment; low-dose-rate radiation exposure activated the hematopoiesis through the increase of flt3 ligand and G-CSF.

• The Korean Journal of Pain
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• 제34권2호
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• pp.185-192
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• 2021

Background: It is known that some analgesics as well as pain can affect the immune system. The aim of this study was to investigate the analgesic effect and immunomodulation of pregabalin (PGB) in a mouse incisional pain model. Methods: A postoperative pain model was induced by hind paw plantar incision in male BALB/c mice. Mice were randomly divided into four groups (n = 8): a saline-treated incision (incision), PGB-treated incision (PGB-incision), sham controls without incision or drug treatment (control), and a PGB-treated control (PGB-control). In the PGB treated groups, PGB was administered intraperitoneally (IP) 30 minutes before and 1 hour after the plantar incision. Changes of the mechanical nociceptive thresholds following incision were investigated. Mice were euthanized for spleen harvesting 12 hours after the plantar incision, and natural killer (NK) cytotoxicity to YAC 1 cells and lymphocyte proliferation responses to phytohemagglutinin were compared among these four groups. Results: Mechanical nociceptive thresholds were decreased after plantar incision and IP PGB administration recovered these decreased mechanical nociceptive thresholds (P < 0.001). NK activity was increased by foot incision, but NK activity in the PGB-incision group was significantly lower than that in the Incision group (P < 0.001). Incisional pain increased splenic lymphocyte proliferation, but PGB did not alter this response. Conclusions: Incisional pain alters cell immunity of the spleen in BALB/c mice. PGB showed antinocieptive effect on mouse incisional pain and attenuates the activation of NK cells in this painful condition. These results suggest that PGB treatment prevents increases in pain induced NK cell activity.

• 한국식품영양과학회지
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• 제38권2호
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• pp.142-145
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• 2009

산천어 70% 에탄올 추출물(MSE)이 암세포 성장억제와 Balb/c 마우스에서의 종양 성장 억제에 미치는 영향을 알아보았다. 인간 자궁암(HeLa), 간암(HepG2), 유방암(MCF-7), 위암(AGS), 폐암(A549) 세포 그리고 인간신장 정상세포 (293)에 MSE을 처리했을 때 세포생존율이 감소하였고 이들 감소율을 MTT assay로 알아보았다. MSE는 정상세포 293에서보다 인간 암세포주인 MCF-7, A549, HepG2, AGS 그리고 HeLa세포에서 현저하게 더 높은 세포독성이 나타났다. 시료 최고농도인 1 mg/mL를 인간 폐암세포(A549), 유방암세포(MCF-7), 간암세포(HepG2) 및 위암세포(AGS)에 처리한 결과 각각 9.2%, 12.7%, 14.6% 및 16.9%의 세포 생존율을 나타내었다. 더하여 복수암 세포(sarcoma-180)를 이용한 실험동물(Balb/c mice)에서의 고형암 성장 억제 효과를 알아보았으며, 각각 25 mg/kg body weight와 250 mg/kg body weight의 MSE를 투여하였을 때 종양 성장 억제율은 각각 44.7%와 55.7%였다. 따라서 우리는 MSE가 암 예방을 위해 인간에게 유익한 기능성 소재일 것이라는 것을 제안하였다.

• 생명과학회지
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• 제24권1호
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• pp.39-45
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• 2014

S. typhimurium MMP13과 ${\chi}8554$는 독력이 약한 JOL401과 독력이 강한 ${\chi}3339$로부터 유래되었다. Heat labile subunit B (LT-B)는 백신의 효율성을 증가시키기 위한 면역보강제로서 일반적으로 사용되고 있다. 고스트 카세트를 운반하는 pMMP184를 MMP13과 ${\chi}8554$에 형질전환하여 고스트를 생성시킨 후 BALB/c 마우스에 근육으로 투여하였다. 면역 보강제가 없는 경우에는 독력에 상반하여 총 IgG 함량이 증가되는 경향성을 보였다. 반대로, 면역보강제를 발현하는 pMMP300을 운반하는 고스트 백신이 동시에 투여되는 경우에는 독력이 강한 균주에서 면역성이 증진되는 경향성을 보였다. 그러나 최종 총 IgG 농도는 유사하게 관찰되었기 때문에, 독력의 세기가 특별히 면역성에 영향을 미치지 못하는 것으로 추정된다. 다른 면역 요소인 IgG1, IgG2a, sIgAs는 특이적인 경향성을 보이지 않았다. 살모넬라 도전실험 결과 독력 유래에 상관없이 유사한 경향성을 보이는 것으로 나타났다. 이상의 결과는 고스트를 생성에 사용된 독력에 관계없이 살모넬라에 대한 면역성이 유발되는 결과를 보였다.

• 한국식품영양과학회지
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• 제39권2호
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• pp.227-236
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• 2010

본 연구는 in vivo에서의 6주령의 BALB/C 생쥐(평균체중 $24.73\pm0.11$ g)에게 1주일 간 노루궁뎅이버섯 균사체(Hericium erinaceus mycelia)를 첨가한 식이를 급여한 후 내독소인 LPS로 인한 산화적 스트레스 및 염증반응에 미치는 영향을 조사하고자 하였다. 실험군은 5군으로 분류하였으며 정상 대조군(NC)과 양성 대조군(LC)은 chow를, HMP 10%군과 HMP 3%군은 chow에 노루궁뎅이버섯 균사체를 각각 3%와 10%를 첨가하였으며 HMP 대조군(HMP-C)은 chow에 노루궁뎅이버섯 균사체를 10% 첨가하여 pellet 형태로 조제하여 1주일 간 각각의 실험 식이를 급여하였다. LC군과 HMP 3% 및 HMP 10%군은 각각 LPS(100 mg/kg BW)를 투여하였으며 NC군과 HMP-C군은 생리식염수를 LPS와 동일한 농도로 투여하였다. 실험동물의 식이효율은 노루궁뎅이버섯 균사체를 보충한 군에서 저하되었으며 노루궁뎅이버섯 균사체의 보충군에서 체중감소 효과를 보였다. 노루궁뎅이버섯 균사체 10%를 보충한 HMP-C군과 HMP 10%군은 분변의 배설량이 가장 많았고 분변 중 총지방 양은 노루궁뎅이버섯 균사체를 섭취한 군에서 높은 수준을 보였으나 섭취량에 따른 현저한 차이는 보이지 않았고, 혈장 TG 함량은 군 간에 유의적인 차이는 보이지 않았으나 노루궁뎅이버섯 균사체 10%를 첨가한 식이를 섭취한 군에서 다소 높은 경향을 보였다. 분변 100 g 당 $\beta$-glucan의 함량은 노루궁뎅이버섯 균사체 3%를 보충한 군에서 가장 높았다. 혈장의 ALT 수준은 LPS를 투여한 후 8시간 경과 후에는 LC군에서 현저하게 증가한 반면 노루궁뎅이버섯 균사체를 첨가한 식이를 급여한 HMP 3%와 HMP 10%군에서는 유의적으로(p<0.05) 저하되어 NC군과 비슷한 수준을 보였다. 간에서의 SOD, GSH-red, GSH-px 활성은 LPS 투여 후 LC군에 비해 노루궁뎅이버섯 균사체를 섭취한 군에서 증가하였으며 GSH-red의 단백질 발현과 GSH 함량 또한 높아지는 것으로 나타났다. 이상의 결과로 미루어 볼 때 노루궁뎅이버섯 균사체의 보충은 내독소인 LPS로 유도된 산화적 스트레스에 저항하여 간 기능을 보호하는 효과가 있는 것으로 보이며 그 기전으로는 항산화 효소계 활성과 GSH-red 단백질 발현 증가, 그리고 GSH 수준 향상 등을 열거할 수 있다.

• 대한약학회:학술대회논문집
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• 대한약학회 2001년도 Proceedings of International Convention of the Pharmaceutical Society of Korea
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• pp.149.2-149.2
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• 2001

• 한국축산식품학회지
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• 제33권5호
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• pp.587-594
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• 2013

Egg consumption has been limited to avoid cardiovascular diseases such as atherosclerosis and hyperlipidemia, because the yolk contains high levels of cholesterol. This study was conducted to evaluate the effect of the water-soluble component of egg-yolk on the growth efficiency, immune modulation, and changes in serum lipid levels in BALB/c mice. A total 5 wk old 120 BALB/c male mice were divided into 4 groups and were fed 0, 2, 10, and 20 mg/d water-soluble egg yolk extract (WSEYE) for 5 wk. Water-soluble egg yolk extract (WSEYE) uptake resulted in a significant reduction in daily weight gain and feed efficiency rate (FER). The mouse groups treated with 2 and 20 mg/d WSEYE showed a significant increase in populations of monocytes at the third wk and B-lymphocyte activity at the fifth wk. In addition, WSEYE uptake did not influence serum immunoglobulin E levels. In serum lipid-profile studies, treatment of WSEYE did not alter total cholesterol and low-density lipoprotein levels; however, blood triglyceride levels were significantly diminished in mice treated with 2 mg/d at the third wk (p<0.05), and the level of high-density lipoprotein was significantly increased in the mice group treated with 2 and 10 mg/d WSEYE after 5 wk (p<0.05). Taken together, the data demonstrate the beneficial effects of WSEYE in the diet on immune modulation and serum lipid profiles in mouse models; therefore, this study suggests that ingestion of water-soluble fraction of egg yolk might not be related to the increased risk of heart disease, but can be an excellent candidate for maintaining health.

• 한방안이비인후피부과학회지
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• 제29권1호
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• pp.16-32
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• 2016

Objective : The water extract of Bojungikgi-tang (BTE) composed with Ginseng Radix, Astragali Radix, Angelicae gigantis Radix, Atractylodes Rhizoma alba, Aurantii nobilis Pericarpium, Glycyrrhizae Radix, Cimicifuga Rhizoma, and Bupleuri Radix and it has been traditionally used for chronic diseases or weakness after illness in oriental countries. However, little is known about the effects of aqueous extract of BTE on trimellitic anhydride (TMA)-induced contact hypersensitivity (CHS). Therefore, the aim of this study was to investigate the effects of BTE on TMA-induced CHS in BALB/c mice.Methods : In this study, the extract of BTE was prepared by extracting with distilled water at 100℃ for 2.5 h. The extract was freeze-dried following filtration through 0.45 μm filter. Mice were orally administrated with or without BTE extract of different doses (25-200 ㎎/㎏/day) for 28 days. During the challenge period, mice were externally applied with different doses of BTE extract one time per day 30 min before TMA treatment. I examined the effects of BTE on the serum levels of IgE, IgG1, IgG2a, and IgG2b, nitric oxide (NO) and prostaglandin E₂ (PGE₂) production in isolated peritoneal macrophages, Th2 cytokine production in isolated spleen cells, ear swelling responses, and the leukocyte infiltration induced by TMA.Results : The orally and externally administration of BTE dose-dependently reduced the serum levels of hapten-specific immunoglobulin E (IgE), IgG1 titer, and PGE₂ production as well as ear swelling responses and leukocyte infiltration in TMA-induced BALB/c mice. The levels of NO and PGE₂ production from peritoneal macrophages stimulated with TMA-BSA were markedly suppressed by pretreatment with BTE in a concentration dependent manner. Furthermore, the levels of Th2 cytokines (IL-4, IL-5, IL-13) production from spleen cells stimulated with ConA were markedly suppressed by BTE treatment in a concentration dependent manner.Conclusions : These results suggest that BTE treatment suppresses chronic contact hypersensitivity, and it can be assumed that the suppression of ear swelling, serum IgE, NO and PGE₂ levels, leukocyte infiltration, and Th2 cytokines in an animal model. Therefore, these properties may contribute to the strong anti-CHS response effect of BTE.

• 생약학회지
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• 제40권3호
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• pp.218-223
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• 2009

The roots of Rumecis Radix have been used for the treatment of heat phlegm, jaundice, constipation, scabies and uterine hemorrhage. The aim of this study was to confirm whether Rumecis Radix water extract (RJWE) has a preventive effect on the development of atopic dermatitis (AD) in 2,4-dinitrochlorobenzene (DNCB)-applied BALB/c mice. Oral administration (12.5 mg/kg, 25 mg/kg) and topical application (0.5 mg/mouse, 1.0 mg/mouse) of RJWE decreased the development of AD-like skin lesions, ear swelling, spleen weight and total serum IgE. RJWE significantly also inhibited the infiltration of mast cells in the dorsal skin. Furthermore, the release of histamine from rat peritoneal mast cells (RPMCs) was suppressed significantly. These results suggest that the inhibitory effect of RJWE on AD might be associated with mast cells.

• Asian Pacific Journal of Cancer Prevention
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• 제14권5호
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• pp.3109-3116
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• 2013

The majority of hepatocellular carcinoma (HCC) patients have a poor prognosis with current therapies, and new approaches are urgently needed. We have developed a novel therapeutic cancer vaccine platform based on tumor cell derived autophagosomes (DRibbles) for cancer immunotherapy. We here evaluated the effectiveness of DRibbles-pulsed dendritic cell (DC) immunization to induce anti-tumor immunity in BALB/c mouse HCC and humanized HCC mouse models generated by transplantation of human HCC cells (HepG2) into BALB/c-nu mice. DRibbles were enriched from H22 or BNL cells, BALB/c-derived HCC cell lines, by inducing autophagy and blocking protein degradation. DRibbles-pulsed DC immunization induced a specific T cell response against HCC and resulted in significant inhibition of tumor growth compared to mice treated with DCs alone. Antitumor efficacy of the DCs-DRibbles vaccine was also demonstrated in a humanized HCC mouse model. The results indicated that HCC/DRibbles-pulsed DCs immunotherapy might be useful for suppressing the growth of residual tumors after primary therapy of human HCC.