• IMMUNE NETWORK
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• 제15권4호
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• pp.206-211
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• 2015

Pulmonary edema is a major cause of mortality due to acute lung injury (ALI). The involvement of protein kinase C-${\delta}$ (PKC-${\delta}$) in ALI has been a controversial topic. Here we investigated PKC-${\delta}$ function in ALI using PKC-${\delta}$ knockout (KO) mice and PKC inhibitors. Our results indicated that although the ability to produce proinflammatory mediators in response to LPS injury in PKC-${\delta}$ KO mice was similar to that of control mice, they showed enhanced recruitment of neutrophils to the lung and more severe pulmonary edema. PKC-${\delta}$ inhibition promoted barrier dysfunction in an endothelial cell layer in vitro, and administration of a PKC-${\delta}$-specific inhibitor significantly increased steady state vascular permeability. A neutrophil transmigration assay indicated that the PKC-${\delta}$ inhibition increased neutrophil transmigration through an endothelial monolayer. This suggests that PKC-${\delta}$ inhibition induces structural changes in endothelial cells, allowing extravasation of proteins and neutrophils.

• Archives of Pharmacal Research
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• 제29권4호
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• pp.302-309
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• 2006

Lupus-like syndrome is characterized by multiple organ injuries including lungs and kidneys. Endotoxin induces a transiently intent systemic inflammatory response and indirectly transient acute lung injury in normal condition. However, whether endotoxin may trigger the persistent development of lung injury in chronic, inflammatory lupus-like syndrome compared with normal condition remains unclear. We examined the pulmonary vascular permeability and production of proinflammatory cytokines, such as TNF-${\alpha}$, IL-6, IL-10 and IFN-${\gamma}$, which play prominent roles in the pathogenesis of lupus-like tissue injury, 6 hand 72 h after i.p. lipopolysaccharide (LPS; endotoxin) injection in pristane-primed chronic inflammation ICR mice characterized by a lupus-like syndrome. These results demonstrated that levels of serum IL-6, IL-10 and IFN-${\gamma}$ and bronchoalveolar lavage (BAL) IL-6 and IFN-${\gamma}$ were remarkably increased 6 h in LPS-exposed pristane-primed mice compared with pristane-primed controls, while pulmonary vascular permeability and levels of serum and BAL TNF-${\alpha}$ were not. And levels of BAL TNF-${\alpha}$, IL-6 and IL-10 were significantly enhanced 72 h in LPS-exposed pristane-primed mice compared with pristane-primed controls. Also, LPS significantly induced the increased in vitro production of TNF-${\alpha}$, IL-6 and IL-10 by lung cells obtained from LPS-exposed pristane-primed mice compared with LPS-exposed normal mice. Our findings indicate that LPS may trigger persistent progression of lung injury through late overproduction of BAL TNF-${\alpha}$, IL-6, and IL-10 in lupuslike chronic inflammation syndrome compared with normal condition.

• Natural Product Sciences
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• 제16권4호
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• pp.245-250
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• 2010

Pulmonary pathogenesis in lupus is characterized by interstitial inflammation and vasculitis in lungs. We investigated whether bamboo culm extract (BC) attenuates pulmonary inflammation and lung injury in pristane-induced lupus mice. The pristane-induced lupus mice and healthy mice were administrated with BC 0.5 ml/kg or PBS orally once a day for 14 days. Our results demonstrated that BC significantly attenuated levels of bronchoalveolar lavage (BAL) IL-6, IL-10, IFN-$\gamma$, $PGE_2$ and VEGF, and pulmonary vascular permeability in pristane-induced lupus mice. Therefore, these findings suggest that BC may inhibit development of pulmonary inflammation and lung injury in lupus.

• 동의생리병리학회지
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• 제16권3호
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• pp.577-583
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• 2002

Experimental studies were done to research the Clinical effects of Insambakhab-tang on the Anti-allergic effect and pulmonary function of O₃ intoxicated Mice. Anti-allergic effect experiment consisted of vascular permeability responses to intradermal histamine and serotonin, 48hrs homologous passive cutaneous anaphylaxis provoked by the IgE-like antibody against egg white albumin, and delayed type hypersensitivity responses to Picryl Chloride and SRBC. Pulmonary function of O₃ intoxicated Mice experimental consisted of pulmonary thromboembolism (Sodium Arachidonate-induced and ADP-induced), lung TBA value, and serum Na/sup +/, K/sup +/, Cl/sup +/ level. The results obtained as follows; 1. In the effects of Insambakhab-tang on the pulmonary thromboembolism by Sodium Arachidonic acid and ADP, Insambakhab-tang group revealed significant effect. 2. In the effects of Insambakhab-tang on the vascular permeability responses to intradermal histamine, Insambakhab-tang group revealed significant effect. 3. In the effects of Insambakhab-tang on the vascular permeability responses to intradermal serotonine, Insambakhab-tang group revealed significant effect. 4. In the 48hrs homologous passive cutaneous anaphylaxis provoked by the IgE-like antibody against egg white albumin, Insambakhab-tang group revealed significant effect. 5. In the delayed type hypersensitivity responses to Picryl Chloride, Insambakhab-tang group revealed significant effect. 6. Insambakhab-tang group revealed significant effect on decrease of the lung TBA value of lung. 7. In the effects of Insambakhab-tang on Serum Na/sup +/, K/sup +/ Level in O₃-intoxicated Mice. Insambakhab-tang group revealed none significant effect, but In the effects of Insambakhab-tang on Serum Cl/sup +/ Level in O₃-intoxicated Mice, Insambakhab-tang group revealed significant effect.

• 대한한방소아과학회지
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• 제12권1호
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• pp.231-256
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• 1998

Experimental studies were done to research the clinical effects of Chihyosan and Chihyosangamibang on the Anti-allergic effect and pulmonary function of $O_3$ intoxicated Rats. Anti-allergic effect experiment consisted of vascular permeability responses to intradermal histamine and serotonin, 48hrs homologous passive cutaneous anaphylaxis provoked by the IgE-like antibody against egg white albumin, and delayed type hypersensitivity responses to Picryl Chloride and SRBC. Pulmonary function of $O_3$ intoxicated Rats experiment consisted of lung TBA value, water Contents of the lung, oxygen consumption time, and arterial blood $pCO_2,\;pO_2,\;HCO_3^-$, pH level. The results obtained as follows; 1. In the effects of Chihyosan and Chihyosangamibang on vascular permeability responses to intradermal histamine, both of chihyosan and Chihyosangamibang group revealed significant effect. 2. In the effects of Chihyosan and Chihyosangamibang on vascular permeability responses to intradermal serotonin, both of chihyosan and Chihyosangamibang group revealed significant effect. 3. In the 48hrs homologous passive cutaneous anaphylaxis provoked by the IgE-like antibody against egg white albumin, Chihyosan groups revealed significant effect, but Chihyosangamibang groups revealed none significant effect. 4. In the delayed type hypersensitivity responses to Picryl Chloride, Chihyosan and Chihyosangamibang groups revealed none significant effect. 5. In the delayed type hypersensitivity responses to. SRBC, Chihyosan revealed none significant effect, but Chihyosankamibang revealed significant effect. 6. Both of Chihyosan and Chihyosangamibang groups revealed significant effect on decrease of the lung TBA value of lung. 7. Both of Chihyosan and Chihyosangamibang groups revealed significant effect on decrease of the water contents of right and left lung. 8. Both of Chihyosan and Chihyosangamibang groups revealed significant effect on decrease of oxygen consumption time. 9. In the decrease effect of arterial blood $pCO_2$ level, both of Chihyosan and Chihyosangamibang groups revealed none significant effect. 10. In the increase effect of arterial blood $pO_2$ level, both of Chihyosan and Chihyosangamibang groups revealed none significant effect. 1. In the decrease effect of arterial blood $HCO_3^-$ level, both of Chihyosan and Chihyosangamibang groups revealed significant effect. 12. In the increase of arterial blood pH level, Chihyosangamibang groups revealed none significant effect, but Chihyosan groups revealed significant effect. According to above stated results, both of Chihyosan and Chihyosangamibang are very usefully for treatment of cough, asthma, chronic obstructive pulmonary diseases and allergic pulmonary diseases.

• 동의생리병리학회지
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• 제19권1호
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• pp.146-151
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• 2005

We investigated the effect of Saururus chinensis (Lour.) Baill (SCB) on allergy in mice. We conformed compound 48/80-induced mesenteric mast cell degranulation, active systemic anaphylatic shock and histamine release. Also observed acetic acid-induced vascular permeability and anti-dinitrophenyl (DNP) IgE-mediated passive cutaneous anaphylaxis. SCB inhibited mesenteric mast cell degranulation and active systemic anaphylatic shock induced by compound 48/80 dose-dependently. When SCB was pretreated by intra-peritoneal injection, the plasma histamine levels were reduced. SCB also significantly inhibited acetic acid-induced vascular permeability and anti-DNP IgE-mediated passive cutaneous anaphylaxis. In addition, SCB reduced IL-10 mRNA expression of the lung on ovalbumin-induced allergy. These results indicate that SCB inhibits allergy.

• Biomolecules & Therapeutics
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• 제32권1호
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• pp.162-169
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• 2024

Particulate matter (PM) constitutes a hazardous blend of organic and inorganic particles that poses health risks. Inhalation of fine airborne PM with a diameter of ≤ 2.5 ㎛ (PM_2.5) can lead to significant lung impairments. (+)-afzelechin (AZC), a natural compound sourced from Bergenia ligulata, boasts a range of attributes, including antioxidant, antimicrobial, anticancer, and cardiovascular effects. However, knowledge about the therapeutic potential of AZC for patients with PM_2.5-induced lung injuries remains limited. Thus, in this study, we investigated the protective attributes of AZC against lung damage caused by PM_2.5 exposure. AZC was administered to the mice 30 min after intratracheal instillation of PM_2.5. Various parameters, such as changes in lung tissue wet/dry (W/D) weight ratio, total protein/total cell ratio, lymphocyte counts, levels of inflammatory cytokines in bronchoalveolar lavage fluid (BALF), vascular permeability, and histology, were evaluated in mice exposed to PM_2.5. Data demonstrated that AZC mitigated lung damage, reduced W/D weight ratio, and curbed hyperpermeability induced by PM_2.5 exposure. Furthermore, AZC effectively lowered plasma levels of inflammatory cytokines produced by PM_2.5 exposure. It reduced the total protein concentration in BALF and successfully alleviated PM_2.5-induced lymphocytosis. Additionally, AZC substantially diminished the expression levels of Toll-like receptors 4 (TLR4), MyD88, and autophagy-related proteins LC3 II and Beclin 1. In contrast, it elevated the protein phosphorylation of the mammalian target of rapamycin (mTOR). Consequently, the anti-inflammatory attribute of AZC positions it as a promising therapeutic agent for mitigating PM_2.5-induced lung injuries by modulating the TLR4-MyD88 and mTOR-autophagy pathways.

• 대한한방소아과학회지
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• 제21권2호
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• pp.69-88
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• 2007

Objectives In this study, we investigated the clinical effect of Imoyongsutang and Imoyongsutang plus Maduryong on the viscosity of mucin solution, the instantly type allergy, the delayed type allergy, the carbon clearance, the pulmonary thromboembolism for the lung damaged rats and mice. Methods The gastric mucin and incubation time, pulmonary thromboembolism induced by sodium arachidonic acid, the pulmonary thromboembolism induced by ADP, vascular permeability response, non inhibitory effects, the delayed type hypersensitivity response to picryl chloride, serum $Na^+$ level, $K^+$ and $Cl^-$ level, ${\alpha}-index$ in phagocytic activity were measured. Results 1. Both the solid extracts of Imoyongsutang and Imoyongsutang plus Maduryong gave some high significance results on the gastric mucin and incubation time on the viscosity of mucin solution in rats, and both groups had similar result. 2. Both the solid extracts of Imoyongsutang and Imoyongsutang plus Maduryong were revealed feeble effect on the pulmonary thromboembolism induced by sodium arachidonic acid in mice, and both groups had similar result. 3. Both the solid extracts of Imoyongsutang and Imoyongsutang plus Maduryong were revealed feeble effect on the pulmonary thromboembolism induced by ADP in mice, and after medication, the value was increased than the before one. 4. Both the solid extracts of Imoyongsutang and Imoyongsutang plus Maduryong were recognized. significance on vascular permeability response induced by histamine in rats. And the significance of the Imoyongsutang plus Maduryong is rather higher than that of Imoyongsutang. 5. The extract of Imoyongsutang recognized no significance symptoms on vascular permeability response induced by serotonin in rats, but the solid extract of Imoyongsutang plus Maduryong resulted recognized significance. 6. Both the solid extracts of Imoyongsutang and Imoyongsutang plus Maduryong were revealed non inhibitory effects on the 48 hour homologous PCA in rats provoked by the IgE-like antibody against the egg albumin. 7. Both the solid extracts of Imoyongsutang and Imoyongsutang plus Maduryong were remarkably revealed inhibitory effect on the delayed type hypersensitivity response to picryl chloride in mice. And the significance of the latter is rather higher than that of the former. 8. The solid extract of Imoyongsutang was revealed inhibitory eects on the delayed type hypersensitivity response to SRBC in mice, but thffe solid extract of Imoyongsutang plus Maduryong recognized significance. 9. The solid extract of Imoyongsutang was recognized significance on the lung TBA value of $O_3$ intoxicated rats, but the solid extract of Imoyongsutang plus Maduryong recognized no significance. 10. Both the solid extracts of Imoyongsutang and Imoyongsutang plus Maduryong was recognized significance on serum $Na^+$ level in $O_{3}-intoxicated$ rats. And the significance of the latter is rather higher than that of the former. 11. Both the solid extracts of Imoyongsutang and Imoyongsutang plus Maduryong were revealed non inhibitory effects on serum $K^+$ and $CL^-$ level $O_{3}-intoxicated$ Rats 12. The solid extracts Imoyongsutang was recognized significance on K-index in phagocytic activity in mice, but the solid extract of Imoymgsutang plus Maduryong recognized no significance. 13. The solid extract Imoyongsutang was recognized on significance on ${\alpha}-index$ in phagocytic activity in mice. but the solid extract of Imoyongsutang plus Maduryong recognized significance. Conclusions According to the above findings, it is suggested that the sold extract of Imoyongsutang and Imoyongsutang plus Maduryong were revealed effects on asthma cough or dyspnea caused by the abnormal rising of lung-allergy and throat discomfort so that they retain effectiveness on the instantly and delayed type allergy, the pulmonary thromboembolism and the lung damages in rats and mice.

• Journal of Acupuncture Research
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• 제18권2호
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• pp.136-149
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• 2001

Objetives : This study was done to evaluate the antiallegic effect of medicinal acupuncture solution of Acanthopanax senticosus(Rupr. et Maxim;abbreviated as ASMA), studies were done experimentally. Methods : For this aim MTT assay, anaphylaxis reaction, DTH, histamine release, IgE production and vascular permability was evaluated. Results : ASMA didn't show an effective cytotoxicity on the mouse lung fibroblast. It insignifcantly suppressed histamine release from mast cells induced by compound 48/80, while it significantly reduced IgE production and SRBC-challenged DTH(Delayed type hypersensitivity). ASMA effectively suppressed anaphylactic reaction induced by compound 48/80. However, it didn't inhibit vascular permeability and contact dermatitis significantly. Conclusion:Medicinal acupucture solution had antialletgic effects. Acanthopanax senticosus medical acupuncture depress the allergy reaction. Especially in anaphylactic type, the effect was good.

• International Journal of Stem Cells
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• 제16권2호
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• pp.191-201
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• 2023

Background and Objectives: O-cyclic phytosphingosine-1-phosphate (cP1P) is a synthetic chemical and has a structure like sphingosine-1-phosphate (S1P). S1P is known to promote cell migration, invasion, proliferation, and anti-apoptosis through hippocampal signals. However, S1P mediated cellular-, molecular mechanism is still remained in the lung. Acute lung injury (ALI) and its severe form acute respiratory distress syndrome (ARDS) are characterized by excessive immune response, increased vascular permeability, alveolar-peritoneal barrier collapse, and edema. In this study, we determined whether cP1P primed human dermal derived mesenchymal stem cells (hdMSCs) ameliorate lung injury and its therapeutic pathway in ALI mice. Methods and Results: cP1P treatment significantly stimulated MSC migration and invasion ability. In cytokine array, secretion of vascular-related factors was increased in cP1P primed hdMSCs (hdMSC^cP1P), and cP1P treatment induced inhibition of Lats while increased phosphorylation of Yap. We next determined whether hdMSC^cP1P reduce inflammatory response in LPS exposed mice. hdMSC^cP1P further decreased infiltration of macrophage and neutrophil, and release of TNF-α, IL-1β, and IL-6 were reduced rather than naïve hdMSC treatment. In addition, phosphorylation of STAT1 and expression of iNOS were significantly decreased in the lungs of MSC^cP1P treated mice. Conclusions: Taken together, these data suggest that cP1P treatment enhances hdMSC migration in regulation of Hippo signaling and MSC^cP1P provide a therapeutic potential for ALI/ARDS treatment.