• 제목/요약/키워드: Mast cell degranulation

검색결과 137건 처리시간 0.033초

금수육군전이 Ovalbumin으로 수발된 Mice의 천식에 미치는 영향 (Effects of Kumsooyukkun-jeon on Asthma Induced by Ovalbumin in Mice)

  • 김춘석;최해윤;김종대
    • 대한한의학회지
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    • 제23권3호
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    • pp.104-118
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    • 2002
  • Objectives : To study the effects of Kumsooyukkun-jeon on asthma. Methods : Asthma was induced to Balb/c mice with ovalbumin using the method of Hatfield et al. We measured the histological profiles of lung and trachea, numbers of cellular compartments in the bronchoalveolar lavage fluid (BALF), numbers and morphology of the mast cells in the trachea, numbers of mucous-secretory cells in the bronchus, morphology of the bronchus, ultramicroscopical appearance of surface of trachea and number of cilia and mucous-secretory cells by scanning electron microscope. Results : 1. Hypertrophy of mucous membrane of trachea and bronchus and bronchioles in the lung, peritracheal, peribronchus and peribronchiolar inflammatory cell infiltration, and mucoid exudate deposition the lumen were observed in control groups but these phenomena were recovered in the Kumsooyukkun-jeon groups. 2. Cellular compartments including neutrophil and eosinophil were increased in the BALF of control groups but these phenomena were recovered in the Kumsooyukkun-jeon groups. 3. Degranulation and decrease of the numbers of mast cells were detected in the trachea of control groups. However, these phenomena were recovered in the Kumsooyukkun-jeon groups. 4. Shedding, decrease of cilia cell and increase of mucous-secretory cells in the surface of the trachea were measured in control groups but these phenomena were recovered in the Kumsooyukkun-jeon groups. Conclusions : It is considered that Kumsooyukkun-jeon has somewhat favorable effects on asthma.

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비만세포에서의 창이자의 탈과립 및 pro-inflammatory cytokines 분비량에 미치는 영향 (Xanthium strumarium suppresses degranulation and pro-inflammatory cytokines secretion on the mast cells)

  • 류지효;윤화정;홍상훈;고우신
    • 한방안이비인후피부과학회지
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    • 제21권3호
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    • pp.82-93
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    • 2008
  • Objective: Previously, the methanol extracts of the semen of Xanthium strumsrium could involved anti-inflammatory effects in lipopolysaccharide (LPS)-stimulated Raw 264,7 cells, We evaluated the anti-allergic effects of X. strumarium on rat basophilic leukemia (RBL-2H3) cells, Methodes : To investigate the effect of X. strumarium on the phorbol 12-myristate 13-acetate (PMA) and calcium ionophore A23187-induced RBL-2H3 cells. The effects of X. strumarium on the degranulation and the pro-inflammatory cytokines secretion and expression from RBL-2H3 cells were evaluated with $\beta$-hexosaminidase assay, ELISA, and RT-PCR analysis, In addition, we examined the effects of X. strumarium on nuclear factor (NF)-${\kappa}B$ activation and $I{\kappa}B-\alpha$ degradation using Western blot analysis. Results : X. strumarium inhibited degranulation and secretions and expressions of pro-inflammatory cytokines, such as tumor necrosis factor-alpha ($TNF-\alpha$), interleukin (IL)-4 and cyclooxygenase (COX)-2, on stimulated RBL-2H3 cells, however, X. strumarium not affect cell viability. In stimulated RBL-2H3 cells, the protein expression level of nuclear factor-kappa B (NF-${\kappa}B$) was decreased in the nucleus by X. strumarium. In addition, X. strumarium suppressed the degradation of inhibitory protein $I{\kappa}B-{\alpha}$ protein in RBL-2H3 cells. Conclusion : These results suggest that X. strumarium inhibits the degranulation and secretion of pro-inflammatory cytokines through blockade of NF-${\kappa}B$ activation and I $I{\kappa}B-{\alpha}$ degradation.

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사물탕(四物湯)이 알러지 염증반응에 미치는 영향 (Effect of Samul-Tang on the Allergic Inflammatory Response)

  • 김은경;김은영;이현삼;정혁상;박성규;손영주;손낙원
    • 동의생리병리학회지
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    • 제21권3호
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    • pp.617-625
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    • 2007
  • Samul-Tang (SMT) has been used for nourishing of the blood, hematopoiesis as a herbal medicine history. The purpose of this study is to find out anti-allergic inflammatory reaction of SMT. To clarify the mechanism, the effect of SMT on vascular permeability of rat cutaneous tissue and histamine and cytokines (IL-6, IL-8, TNF-${\alpha}$) release from mast cells were observed. The results are the pretreatment with SMT significantly decreased the compound 48/80-induced degranulation and histamine release from RPMC, SMT also inhibited the anti-DNP lgE-induced increment of vascular permeability of rat cutaneous tissue. SMT significantly reduced the PMA plus A23187-induced increment of expression of IL-6, IL-8, and TNF-${\alpha}$ in HMC-1 Cell. The Present study provide evidence that SMT inhibits mast cell-derived inflammatory allergic reactions by blocking histamine release and pro-inflammatory cytokine expression, and suggest the mechanisms of action. Furthermore, in vivo and in vitro anti-allergic effect of SMT suggests a possible therapeutic application of this agent in inflammatory allergic diseases.

고빈도 120 Hz 전침이 Cold-Restraint 스트레스 유발 흰쥐의 위점막에 미치는 영향(影響) (The Effects of 120 Hz High Frequency Electroacupuncture on the Gastric Mucosa in Cold-Restraint Stressed Rats)

  • 조미형;안창범;송춘호;윤현민;김철홍;장경전
    • Korean Journal of Acupuncture
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    • 제21권4호
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    • pp.101-115
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    • 2004
  • Objective : The present studies investigated the effects of 120 Hz high frequency electroacupuncture (EA) on the stress-induced stomach dysfunction in relation to its effect on the level of stress hormones and gastric mucosal damages. The gastric mucosal injury was induced by cold-restraint stress and two acupoints corresponding to Zusanli and Sanyinjiao in man were used. Methods : Cold-restraint stress produced typical gastric lesions in all rats of the stressed groups, but the number of ulcers as well as the mean ulcer diameter were reduced by 120 Hz EA pre-treatment. Results : The degranulation value of gastric mast cell was significantly higher in cold-restrained rats than in control ones. However, with the significant reduction of degranulation values of gastric mast cells in EA pre-treated rats compared with cold-restrained rats. Cold-restarint stress induced an elevated mRNA expression of pro-inflammatory gene such as cyclooxygenases-2 and tumor necrosis factor $(TNF)-{\alpha}$, but these expression were down-regulated in EA pre-treated rats. Immunohistochemical analysis showed that while the $inhibitory-{\kappa}B{\alpha}$ and $TNF-{\alpha}$ immunorection in the surface epithelium of the stomach tended to increase, both reactions in the EA pre-treated rats showed similar pattern as observed in controls. Conclusion : These results suggest that 120 Hz EA may act as a therapeutical means for gastric mucosal damages through an activation of pituitary adrenal system. It could be concluded that 120 Hz high frequency electroaucupuncture affords a good protective potential against stress-induced gastrointestinal dysfunction.

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Anti-Allergic Effect of Oroxylin A from Oroxylum indicum Using in vivo and in vitro Experiments

  • Lee, Ae-Yeon;Kang, Saeromi;Park, Soo-Jin;Huang, Jin;Im, Dong-Soon
    • Biomolecules & Therapeutics
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    • 제24권3호
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    • pp.283-290
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    • 2016
  • Oroxylum indicum has long been used in Asian traditional medicine to prevent and treat respiratory diseases, diabetes, diarrhea and other conditions. Oroxylin A is a flavone that is present in Oroxylum indicum and in Scutellaria baicalensis. Because the root extracts of both plants have been shown to have anti-allergic effects, the authors investigated whether oroxylin A is likely to have beneficial effects on allergic asthma using female Balb/c mice and rat RBL-2H3 mast cells. Antigen-induced degranulation was measured in vitro by measuring b-hexosaminidase activity. A murine ovalbumin-induced allergic asthma model was used to test the in vivo efficacy of oroxylin A. Sensitization and challenge of ovalbumin induced allergic asthma responses, the accumulations of eosinophils and Th2 cytokine levels in bronchoalveolar lavage fluid and lung tissues. Oroxylin A administration decreased numbers of inflammatory cells, especially eosinophils, and reduced the expression and secretion of Th2 cytokines, including IL-4 and IL-13, in lung tissues and bronchoalveolar lavage fluid. Histologic studies showed oroxylin A reduced inflammatory signs and mucin production in lungs. These findings provide evidence that oroxylin A has potential use as an anti-allergic therapeutic.

Cold-Restraint 스트레스 유발 위점막손상에 미치는 고빈도 120Hz 전침의 효과 (The Effects of 120Hz High Frequency Electroacupuncture on the Cold-Restraint-Induced Gastric Mucosal Damages)

  • 조미형;최병태;장경전
    • Journal of Acupuncture Research
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    • 제20권3호
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    • pp.177-193
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    • 2003
  • Objective : The present studies investigated the effects of 120Hz high frequency electroacupunctue(EA) on the stress-induced stomach dysfunction in relation to its effect on the level of stress hormone and gastric mucosal damages. The gastric mucosal injury was induced by cold-restraint stress and two acupoints corresponding to Zusanli and Sanyinjiao in man were used. Methods: Cold-restraint stress produced typical gastric lesions in all rats of the stressed groups, but he number of ulcers as well as the mean ulcer diameter were reduced by 120 Hz EA pre-treatment. The cold-restraint stress also induced an increase in catecholamine response involving epinephrine, norepinephrine and dopamine, but an slight decline were observed in EA pre-treated rats compared with cold-restrained rats. Results: The degranulation value of gastric mast cell was significantly higher in cold-restrained rats than in control ones. However, with the significant reduction of degranulation values of gastric mast cells in EA pre-treated rats compared with cold-restrained ones, $PGE_2$ content in the gastric mucosa of EA pre-treated rats was also different from that observed in cold-restrained rats. Cold-restraint stress induced an elevated mRNA expression of pro-inflammatory gene such as cyclooxygenases-2 and tumor necrosis factor(TNF)-${\alpha}$, but these expression were down-regulated in EA pre-treated rats. Immunohistochemecal analysis showed that while the inhibitory-${\kappa}B{\alpha}$ an TNF-${\alpha}$ immunoreaction in the surface epithelium of the stomach tended to increase, both reactions in the EA pre-treated rats showed similar pattern as observed in controls. Conclusions : These results suggest that 120 Hz EA may act as a therapeutical means for gastric mucosal damages through a activation of pituitary adrenal system. it could be concluded that 120 hz high frequency electroacupuncture affords a good protective potential against stress-induce gastrointestinal dysfunction.

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비만세포의 탈과립에 대한 다양한 Src-family kinase의 역할 (Roles of Src-family kinase isoforms, Lyn, Fyn, Fgr, and c-Src on degranulation in RBL-2H3 mast cells)

  • 이준호;문세환;고나영;김지완;김도균;김주동;허억;최완수
    • 생명과학회지
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    • 제17권3호통권83호
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    • pp.350-355
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    • 2007
  • 흰쥐유래의 비만세포인 RBL-2H3 세포는 다양한 Src-family kinase를 발현한다. 현재까지의 연구결과에 의하면 비만세포의 초기 활성화에 Lyn kinase가 중요한 역할을 한다고 알려져 왔다. 그러나 그 세포에서 발현되는 다양한 다른 Src-family kinase의 역할은 불분명하다. 본 연구에서는 비만세포에서 다양한 Src-family kinase가 세포내 다른 곳에서 다양하게 발현되고 있다는 사실을 RT-PCR, immunoblotting 그리고 confocal microscopy 기법을 이용하여 증명하였다. 그 결과 Lyn 및 Fgr kinase는 세포막에 위치하고 c-Src 및 Yes kinase는 세포 내 과립에 존재하는 것을 알 수 있었다. 모든 Src-family kinase를 클로닝하고 과발현하여 탈과립 대한 영향을 평가하였다. 그 결과 fyn과 Fgr kinase는 비만세포에서 항원 유도의 탈과립을 증가시켰으며 반면 Lyn kinsae는 탈과립을 억제시키는 것을 확인할 수 있었다. 이러한 결과는 비만세포 초기 신호전달계에서 Fgr가 중요한 역할을 할 가능성을 제시한다.

인삼성분 및 제제의 생체막 보호 효과에 대한 연구 (Preliminary Investigation of Membrane Modifying Effects of Ginseng Components)

  • 한덕룡;김창종
    • Journal of Ginseng Research
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    • 제11권1호
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    • pp.1-9
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    • 1987
  • 인삼추출물(95%, 50% 에탄올 및 수침액) ginsenoside Re 및 ginsana G115를 공식약물로 해서 thioacetamide로 intoxication 시킨 동물에 대한 in vitro, in vivo test를 통해 예방적 효과 및 치료적인 효과에 대해서 실험하였다. 항산화작용에 있어서 ginsenoside Re, 수침액, Ginsana C 115가 통계적으로 유효하였으며 zine sulfate turbidity test에서는 95% 에탄올 추출물과 ginsenoside Re가, GOT에 대해서는 Ginsana G 115, GPT에 대해서는 ginsenoside Re가 통계적인 유효성을 나타냈다. Venom toxin과 compound 48/80에 의한 mast cell의 탈과립현상에 대한 방어시험에서 50% 에탄올 추출물, 수침물, 95% 에탄올 추출물 및 Ginsana G 115가 유효하였다.

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NJK14047 Suppression of the p38 MAPK Ameliorates OVA-Induced Allergic Asthma during Sensitization and Challenge Periods

  • Ju-Hyun, Lee;Seung-Hwan, Son;Nam-Jung, Kim;Dong-Soon, Im
    • Biomolecules & Therapeutics
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    • 제31권2호
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    • pp.183-192
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    • 2023
  • p38 MAPK has been implicated in the pathogenesis of asthma as well as pro-allergic Th2 cytokines, orosomucoid-like protein isoform 3 (ORMDL3), regulation of sphingolipid biosynthesis, and regulatory T cell-derived IL-35. To elucidate the role of p38 MAPK in the pathogenesis of asthma, we examined the effect of NJK14047, an inhibitor of p38 MAPK, against ovalbumin (OVA)-induced allergic asthma; we administrated NJK14047 before OVA sensitization or challenge in BALB/c mice. As ORMDL3 regulation of sphingolipid biosynthesis has been implicated in childhood asthma, ORMDL3 expression and sphingolipids contents were also analyzed. NJK14047 inhibited antigen-induced degranulation of RBL-2H3 mast cells. NJK14047 administration both before OVA sensitization and challenge strongly inhibited the increase in eosinophil and lymphocyte counts in the bronchoalveolar lavage fluid. In addition, NJK14047 administration inhibited the increase in the levels of Th2 cytokines. Moreover, NJK14047 reduced the inflammatory score and the number of periodic acid-Schiff-stained cells in the lungs. Further, OVA-induced increase in the levels of C16:0 and C24:1 ceramides was not altered by NJK14047. These results suggest that p38 MAPK plays crucial roles in activation of dendritic and mast cells during sensitization and challenge periods, but not in ORMDL3 and sphingolipid biosynthesis.

Alisol B 23-Acetate Ameliorates Ovalbumin-Induced Allergic Asthma during Sensitization and Challenge Periods

  • Ki-Hyuk Nam;Dong-Soon Im
    • Biomolecules & Therapeutics
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    • 제31권6호
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    • pp.611-618
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    • 2023
  • Rhizome of Alisma orientale has been used as a traditional medicine for treating kidney diseases in East Asian countries. Its inhibitory effects on hypersensitivity responses have been reported for methanol extracts, with alisol B 23-acetate (AB23Ac) being the most active constituent among six terpenes in inhibiting the direct passive Arthus reaction. However, whether AB23Ac has efficacy against allergic asthma has not been tested to date. The in vivo efficacy of AB23Ac in an ovalbumin (OVA)-induced allergic asthma mouse model was evaluated by administrating AB23Ac before OVA sensitization or OVA challenge in BALB/c mice. AB23Ac suppressed antigen-induced degranulation of RBL-2H3 mast cells in a concentration-dependent manner. The administration of AB23Ac both before OVA sensitization and OVA challenge greatly lowered pulmonary resistance and the increase in immune cell counts and inflammatory responses around the peribronchial and perivascular regions. In addition, the inflammatory cytokine levels of Th1/Th2/Th17 cells in the bronchoalveolar lavage fluid decreased in the AB23Ac-treated groups. AB23Ac reduced the number of PAS-stained cells in the lungs. Furthermore, a computer modeling study indicated that AB23Ac can bind tightly to spleen tyrosine kinase (Syk). These results suggest that AB23Ac may ameliorate allergic asthma by suppressing immune responses in dendritic cells during sensitization and in mast cells during challenge periods.