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Prognosis of sepsis induced by cecal ligation and puncture in mice improved by anti-Clonorchis Sinensis cyclopholin a antibodies.

Song T, Yang M, Chen J, Huang L, Yin H, He T, Huang H, Hu X - Parasit Vectors (2015)

Bottom Line: Lung and mesentery tissues were stained with hematoxylin-eosin.Anti-CsCyPA antibodies could combine with MuCyPA and inhibit its peptidyl prolyl isomerase (PPIase) activity.Furthermore, the survival rate was elevated, ranging from 10.0 % to 45.0 % compared to the control group.

View Article: PubMed Central - PubMed

Affiliation: Department of Parasitology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China. songtianzhang@163.com.

ABSTRACT

Background: Cyclophilin A (CyPA), a ubiquitously distributed intracellular protein, is thought to be one of the important inflammatory factors and plays a significant role in the development process of sepsis. In the form of cytokine, CyPA deteriorates sepsis by promoting intercellular communication, apoptosis of endothelial cells and chemotactic effect on inflammatory cells. In our previous study, cyclophilin A of Clonorchis sinensis (CsCyPA), a type of excretory-secretory antigen, could induce the patients infected with Clonorchis sinensis to produce specific anti-CsCyPA antibodies. In this study, we investigated whether anti-CsCyPA antibodies could cross-react with CyPA and then play a protective role against sepsis, just like other anti-cytokine antagonists.

Methods: The mice model with sepsis was established with cecal ligation and puncture (CLP). Fifty mg/kg purified anti-CsCyPA antibodies were injected via the caudal vein 6 h after the CLP operation, and persistent observation was performed for 72 h. Blood samples and tissues were collected at 6 h, 12 h, 24 h, 48 h and 72 h after CLP. Cytokines in serum were measured by ELISA. Lung and mesentery tissues were stained with hematoxylin-eosin. Endothelial cells (ECs) isolated from murine aorta were co-cultured with CyPA of mice (MuCyPA) and anti-CsCyPAs for 24 h, then, viability was measured by Cell Counting Kit-8.

Results: Anti-CsCyPA antibodies could combine with MuCyPA and inhibit its peptidyl prolyl isomerase (PPIase) activity. In the antibodies treatment group, blood coagulation indicators including PT, aPTT, D-dimer and platelet count were obviously more ameliorative, the proinflammary factors like IL-6, TNF-α, IL-1β were significantly lower at 12 h and 24 h after surgery and the viability of ECs was significantly improved compared to those in the control group. Furthermore, the survival rate was elevated, ranging from 10.0 % to 45.0 % compared to the control group.

Conclusions: These antibodies may have a favorable effect on sepsis via inhibition of enzymic activity or protection of endothelial cells.

No MeSH data available.


Related in: MedlinePlus

Histological Changes in Lung and Mesentery Tissues (hematoxylin-eosin; ×400). a, c lung and mesentery tissues of the CLP control group; b, d lung and mesentery tissues of the CLP treatment group. Black arrow: thrombus; Red arrow: hemorrhage; Pink arrow: alveolar consolidation; Yellow arrow: leukocyte aggregation; Gray arrow: alveolar wall thickening; Green arrow: inflammatory emigration; Blue arrow: mesentery fibrosis; Orange arrow: normal fat cells
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Fig7: Histological Changes in Lung and Mesentery Tissues (hematoxylin-eosin; ×400). a, c lung and mesentery tissues of the CLP control group; b, d lung and mesentery tissues of the CLP treatment group. Black arrow: thrombus; Red arrow: hemorrhage; Pink arrow: alveolar consolidation; Yellow arrow: leukocyte aggregation; Gray arrow: alveolar wall thickening; Green arrow: inflammatory emigration; Blue arrow: mesentery fibrosis; Orange arrow: normal fat cells

Mentions: H&E staining of the lung and mesentery of both the CLP control group and the CLP treatment group were shown in Fig 7. Lung tissue specimens in the CLP control group presented apparent thrombus at 12 h, and were characterized by leukocyte influx, edema, hemorrhage, wall thickening and alveolar consolidation at 48 h and 72 h (Fig.7a). In contrast, lung tissue in the CLP treatment group presented apparent thrombus at 24 h, and demonstrated leukocyte influx and edema without obvious hemorrhage and alveolar consolidation at 48 h and 72 h (Fig. 7b). Significantly, comparing lung tissue at 48 h and 72 h, pathological change seemed ameliorated in the CLP treatment group, while deteriorated in CLP control group.Fig 7


Prognosis of sepsis induced by cecal ligation and puncture in mice improved by anti-Clonorchis Sinensis cyclopholin a antibodies.

Song T, Yang M, Chen J, Huang L, Yin H, He T, Huang H, Hu X - Parasit Vectors (2015)

Histological Changes in Lung and Mesentery Tissues (hematoxylin-eosin; ×400). a, c lung and mesentery tissues of the CLP control group; b, d lung and mesentery tissues of the CLP treatment group. Black arrow: thrombus; Red arrow: hemorrhage; Pink arrow: alveolar consolidation; Yellow arrow: leukocyte aggregation; Gray arrow: alveolar wall thickening; Green arrow: inflammatory emigration; Blue arrow: mesentery fibrosis; Orange arrow: normal fat cells
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4591565&req=5

Fig7: Histological Changes in Lung and Mesentery Tissues (hematoxylin-eosin; ×400). a, c lung and mesentery tissues of the CLP control group; b, d lung and mesentery tissues of the CLP treatment group. Black arrow: thrombus; Red arrow: hemorrhage; Pink arrow: alveolar consolidation; Yellow arrow: leukocyte aggregation; Gray arrow: alveolar wall thickening; Green arrow: inflammatory emigration; Blue arrow: mesentery fibrosis; Orange arrow: normal fat cells
Mentions: H&E staining of the lung and mesentery of both the CLP control group and the CLP treatment group were shown in Fig 7. Lung tissue specimens in the CLP control group presented apparent thrombus at 12 h, and were characterized by leukocyte influx, edema, hemorrhage, wall thickening and alveolar consolidation at 48 h and 72 h (Fig.7a). In contrast, lung tissue in the CLP treatment group presented apparent thrombus at 24 h, and demonstrated leukocyte influx and edema without obvious hemorrhage and alveolar consolidation at 48 h and 72 h (Fig. 7b). Significantly, comparing lung tissue at 48 h and 72 h, pathological change seemed ameliorated in the CLP treatment group, while deteriorated in CLP control group.Fig 7

Bottom Line: Lung and mesentery tissues were stained with hematoxylin-eosin.Anti-CsCyPA antibodies could combine with MuCyPA and inhibit its peptidyl prolyl isomerase (PPIase) activity.Furthermore, the survival rate was elevated, ranging from 10.0 % to 45.0 % compared to the control group.

View Article: PubMed Central - PubMed

Affiliation: Department of Parasitology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China. songtianzhang@163.com.

ABSTRACT

Background: Cyclophilin A (CyPA), a ubiquitously distributed intracellular protein, is thought to be one of the important inflammatory factors and plays a significant role in the development process of sepsis. In the form of cytokine, CyPA deteriorates sepsis by promoting intercellular communication, apoptosis of endothelial cells and chemotactic effect on inflammatory cells. In our previous study, cyclophilin A of Clonorchis sinensis (CsCyPA), a type of excretory-secretory antigen, could induce the patients infected with Clonorchis sinensis to produce specific anti-CsCyPA antibodies. In this study, we investigated whether anti-CsCyPA antibodies could cross-react with CyPA and then play a protective role against sepsis, just like other anti-cytokine antagonists.

Methods: The mice model with sepsis was established with cecal ligation and puncture (CLP). Fifty mg/kg purified anti-CsCyPA antibodies were injected via the caudal vein 6 h after the CLP operation, and persistent observation was performed for 72 h. Blood samples and tissues were collected at 6 h, 12 h, 24 h, 48 h and 72 h after CLP. Cytokines in serum were measured by ELISA. Lung and mesentery tissues were stained with hematoxylin-eosin. Endothelial cells (ECs) isolated from murine aorta were co-cultured with CyPA of mice (MuCyPA) and anti-CsCyPAs for 24 h, then, viability was measured by Cell Counting Kit-8.

Results: Anti-CsCyPA antibodies could combine with MuCyPA and inhibit its peptidyl prolyl isomerase (PPIase) activity. In the antibodies treatment group, blood coagulation indicators including PT, aPTT, D-dimer and platelet count were obviously more ameliorative, the proinflammary factors like IL-6, TNF-α, IL-1β were significantly lower at 12 h and 24 h after surgery and the viability of ECs was significantly improved compared to those in the control group. Furthermore, the survival rate was elevated, ranging from 10.0 % to 45.0 % compared to the control group.

Conclusions: These antibodies may have a favorable effect on sepsis via inhibition of enzymic activity or protection of endothelial cells.

No MeSH data available.


Related in: MedlinePlus