• 제목/요약/키워드: Histamine-releasing factor

검색결과 12건 처리시간 0.021초

Histamine Releasing Factor (HRF) Evokes [3H] Dopamine Release by a Ca^{2+} - independent Pathway in Pheochromocytoma Cells

  • Seo, Ji-Hui;Kim, Hwa-Jung
    • 대한약학회:학술대회논문집
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    • 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
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    • pp.268.2-269
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    • 2002
  • The recombinant histamine-releasing factor (rHRF) has been reported to induce a secretion of histamine and cytokines from inflammation-related cell types such as basophils and eosinophils. and to function as a growth factor in immune B cells. Recently. decreased expression level of HRF protein was observed in brain of patients with Alzheimer disease and Downs syndrome. suggesting a possible significant role in neurological systems. (omitted)

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Identification of the Interaction between Rat Translationally Controlled Tumor Protein/IgE-dependent Histamine Releasing Factor and Myosin Light Chain

  • Kim, Min-Jeong;Jung, Jae-Hoon;Choi, Eung-Chil;Park, Hae-Young;Lee, Kyung-Lim
    • BMB Reports
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    • 제34권6호
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    • pp.526-530
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    • 2001
  • The translationally controlled tumor protein (TCTP), also known as the IgE-dependent histamine releasing factor (HRF), was used in the yeast two-hybrid system to screen the interacting molecules. We obtained the N-terminus truncated rat fast myosin alkai light chain from the rat skeletal muscle cDNA library in the screening. Since either TCTP/HRF or the myosin light chain is known to be associated with histamine secretion from RBL-2H3 cells, we investigated the possible interaction between rat TCTP/HRF and nonmuscle myosin light chain in these cells. We used affinity chromatography and coimmunoprecipitation. Our data suggests that HRF and the myosin light chain interact, which may play an important role in histamine release in RBL-2H3 cells.

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RBL-2H3에서 IgE-dependent Histamine-releasing Factor에 의한 활성산소종 생성에 관한 연구 (Generation of ROS by IgE-Dependent Histamine-Releasing Factor in RBL-2H3 Cells)

  • 주이신;이경림
    • 한국미생물·생명공학회지
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    • 제33권3호
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    • pp.231-235
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    • 2005
  • RBL-2H3 cell에서 HRE에 의하여 histamine이 분비되는 과정에서 ROS가 생성되는지 실험해 본 결과, ROS가 HRF를 처리한지 5분대에 최대치를 보이며 생성되었다가 소멸되는 것을 관찰할 수 있었다. 따라서 HRF가 세포내 second messenger로써의 ROS를 생성하였다고 확인할 수 있었다. 또한 ROS는 단백질 정제 과정에서의 endotoxin오염에 의해 영향을 받지만,본 실험에서 규명한 HRF에 의한 ROS 생성은 endotoxin에 의한 것이 아닌, 순수하게 HRF에 의한 signaling의 결과라는 것도 확인할 수 있었다.

HeLa세포에서 IgE-dependent Histamine-releasing Factor의 인산화가 Na,K-ATPase의 활성에 미치는 영향 (Studies on the Effect of the Phosphorylated IgE-Dependent Histamine-Releasing Factor on Na,K-ATPase Activity in HeLa Cell)

  • 김정아;하헌주;이경림
    • 한국미생물·생명공학회지
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    • 제33권3호
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    • pp.184-188
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    • 2005
  • HRF는 Na,K-ATPase의 ${\alpha}$ subunit에 결합하여 이의 활성을 저해하는 것으로 알려져 있으며, PKC에 의해 Ser98 잔기가 인산화 될 수 있다는 것을 anti-HRFpS98 항체와 HRF S98A mutant를 이용한 실험으로 확인할 수 있었다. 또한 $^{86}Rb^{+}-uptake$ assay 실험에서 HRF의 serine 98 잔기의 탈인산화는 Na,K-ATPase의 활성에 약간의 영향을 미치는 것으로 미루어 PKC에 의해 인산화되는 98 serine 잔기가 Na,K-ATPase 활성 저해에 큰 영향을 미치지 않는 것으로 보인다.

Na,K-ATPase와 IgE-Dependent Histamine Releasing Factor의 결합에 영향을 미치는 Protein Kinase C Isotype에 관한 연구 (PKC Isotype that Affects the Interaction of HRF with Na, K-ATPase)

  • 손원주;이경림
    • 한국미생물·생명공학회지
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    • 제33권4호
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    • pp.260-266
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    • 2005
  • 본 실험에서는 MRF가 다량 존재하는 RBL-2H3 세포주에 다양한 PKC isotype별 억제제를 처리하여 in vitro상에서 Na, K-ATPase $\alpha$1L3를 이용한 pull-down assay와 RBL-2H3 세포를 이용한 membrane fractionation을 실시하였다. 그 결과 HRF는 in vitro에서 $\alpha$1L3와 결합한다는 사실을 재확인 할 수 있었고 실제 세포주 내에서 Na,K-ATPase와 결합한다는 것을 알 수 있었다. 사용한 약물로부터 PKC $\alpha,\;\beta,\;\delta$뿐 아니라 protein phosphatase 2B(PP2B)도 HRF와 $\alpha$1L3의 결합에 관여한다는 사실을 알 수 있었다. 또한 이들 PKC, PP2B에 의해 인산화된 HRF 분자는 cytosolic fraction으로 이행할 수 있으며 이러한 결과는 탈인산화된 HRF가 Na,K-ATPase와 결합하여 Na, K-ATPase의 기능을 조절한다고 추정할 수 있다. 그러나 약물자체가 histamine 분비에 영향을 미칠 수 있으며 cytosolic HRF보다 exocytosis된 HRF가 histamine를 더 분비하도록 할 수 있으므로, 약물을 전처리한 세포에 외부에서 HRF를 첨가하여 histamine이 유리되는 정도가 어떻게 변화하는지를 HRF를 가하지 않은 결과와 비교해야 할 것이다.

HeLa 세포에서 IgE-dependent Histamine-Releasing Factor와 Triosephosphate Isomerase의 상호작용 규명 (Interaction between IgE-Dependent Histamine-Releasing Factor and Triosephosphate Isomerase in HeLa Cells)

  • 문지애;김화정;이경림
    • 한국미생물·생명공학회지
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    • 제33권4호
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    • pp.255-259
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    • 2005
  • 본 실험에서는 HRF의 조절단백질을 알아보기 위해 HRF를 bait로 한 yeast two hybrid assay를 실행한 결과 해당과정에 관여하는 TPI(triosephosphate isomerase)라는 효소를 발견하였으며, 가장 많이 중복되어 있었다. In vitro에서 HRF는 TPI의 C말단 잔기 부근(아미노산 156-249)이 상호작용에 주로 관여하는 부위임을 알 수 있었다. 또한, HeLa 세포에서 immunoprecipitation을 이용하여 HRF와 TPI의 상호작용이 실제 in vivo에서도 일어나는 현상이라는 것을 밝혔다. 결과적으로 HRF와 TPI 상호작용은 세포내 일정량이 존재하며 여러가지 신호전달에 의해 동시에 Na,K-ATPase와도 상호작용하는 것으로 생각된다.

RBL-2H3 세포에서 IgE-depnedent Histamine-releasing Factor의 탈인산화 효소에 관한 연구 (Identification of Calcium/Calmodulin-Dependent Phosphatase as the Dephosphorylating Enzyme of IgE-Dependent Histamine-Releasing Factor in RBL-2H3)

  • 황선옥;이경림
    • 한국미생물·생명공학회지
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    • 제33권3호
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    • pp.189-193
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    • 2005
  • RBL-2H3 cell lysates에 anti-protein phosphatase(PP) 1, 2A, 2B 항체를 첨가한 후 immunoprecipitation을 실시한 결과 PP2B를 가해준 샘플에서만 HRF를 확인하였다. 역으로 monoclonal anti-HRF 항체를 가한 후 immunoprecipitation을 실시한 결과 PP1, 2A는 검출되지 않았으나 PP2B의 경우는 regulatory subunit(19 kDa), catalyic subunit(60 kDa) 모두 확인할 수 있었다. Affinity chromatography를 통해서도 PP2B가 HRF의 탈인산화에 관여함을 확인하였다 즉 19kDa의 PP2B regulatory subunit과 60kDa의 catalytic subunit 모두가 확인되었으며 외부 $Ca^{2+}$이온 첨가 여부에 따른 차이는 관찰할 수 없었다. 결론적으로 RBL-2H3 cell에서 PP2B는 PP1이나 PP2A에 비해 상대적으로 그 존재량은 적으나 HRF와 상호작용하는 phosphatase로서 검출된 반면 PP1이나 PP2A는 검출되지 않았다.

HeLa 세포에서 Estrogen이 Na,K-ATPase활성에 미치는 영향 (Estrogen Effect on the Na,K-ATPase Activity Repressed by IgE-Dependent Histamine-Releasing factor in HeLa Cells)

  • 이시내;김화정;이경림
    • 한국미생물·생명공학회지
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    • 제33권4호
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    • pp.322-326
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    • 2005
  • IgE-dependent histamine-releasing factor (HRF) is found extracellularly to regulate the degranulation process of histamine in mast cells and basophils and known to play a predominant role in the pathogenesis of chronic allergic disease. HRF has been also identified in the intracellular region of the cell. Previously, we reported that HRF interacts with the 3rd cytoplasmic domain of the alpha subunit of Na,K-ATPase and inhibits Na,K-ATPase activity. Since it is known that estroaen activates the sarcolemmal Na,K-ATPase, we tested whether estrogen recovers the Na,K-ATPase activity repressed by HRF. In this study, we showed that estrogen activates Na,K-ATPase repressed by HRF. RT-PCR and western blot analysis showed that estrogen doesn't reduce the expression level of HRF in HeLa cell, suggesting that this recovery effects of estrogen probably occur via indirect mechanism on HRF and Na,K-ATPase.

Effects of Mix-1 on Anti-CD40 Antibody and Recombinant IL4- Induced Cytokine Production and Immunoglobulin E in Highly Purified Mouse B Cells

  • Kim Jung Hwan;Choi Sun Mi;Lee Yong Gu;Namgoong Uk;Kim Dong Hee
    • 동의생리병리학회지
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    • 제18권6호
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    • pp.1869-1880
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    • 2004
  • In the oriental medicine, a mixture of herbs has been commonly used as important components to control allergic and inflammatory diseases. In the present study, we prepared a mixture of Dictamni Radicis Cortex(Baiksunpee), Houttuyniae Herba(Uhsungcho), and Aurantii Immaturus Fructus(Jisil) to examine its anti-allergic effects in activated mouse splenic cells and found that Mix-1 is involved in regulating levels of B cell activating factors (CD23 and CD11a), IL-1β, IL-6, IL-10, TNF-α, and 1gE as well as HRF expression. It was observed that Mix-1 did not have cytotoxic effects on mLFC. Mix-1 showed inhibition of CD23 and CD11 alpaha expression in mouse B cells, and also decreased the production of IL-6, TNF-α, and 1gE. Both RT-PCR and ELISA analyses indicated that IL-6 and TNF alpha production were regulated at the gene expression level. In contrast, IL-10 mRNA and protein levels were increased in activated B cells by Mix-1 treatment. We also found that Mix-1 inhibited B cell proliferation and inhibited histamine releasing factor(HRF) expression, suggesting its inhibitory effect on histamine secretion. These data indicated that Mix-1 has an anti-allergic effect in activated macrophages and further suggest the possible application of Mix-1 as a therapeutic agent for the treatment of allergy-related diseases.

Identification of the Calcium Binding Sites in Translationally Controlled Tumor Protein

  • Kim, Moon-Hee;Jung, Yoon-Wha;Lee, Kyung-Lim;Kim, Choon-Mi
    • Archives of Pharmacal Research
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    • 제23권6호
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    • pp.633-636
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    • 2000
  • Translationally controlled tumor protein (TCTP), also known as IgE-dependent histamine-releasing factor, is a growth-related tumor protein. Although the primary sequence of rat TCTP does not reveal any recognizable $Ca^{2+}$ -binding motif, previous studies have demonstrated that rat TCTP consisting of 172 amino acids is a $Ca^{2+}$ -binding protein. However. the region of TCTP required for $Ca^{2+}$ interaction has not been mapped to the molecule. Here, we reported that the $Ca^{2+}$ binding region of TCTP which was mapped by using a combination of deletion constructs of rat TCTP and $^{45}Ca^{2+}$-overlay assay. was confined to amino acid residues 81-112. This binding domain did not show any peculiar loop of calcium- binding motif such as CaLB domain and EF hand motif and it seems to be constituted of random coil regions neighboring the a helix. Thus, our data confirm that TCTP is a novel family of $Ca^{2+}$ -binding protein.

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