Two organ culture models have been adapted for porcine tracheae in order to study colonization by Bordetella bronchiseptica. Rings or segments excised from tracheae of newborn piglets were incubated overnight at 37 degrees C in a nutrient medium under 5% CO2-95% air conditions. Tracheal segments were infected with B bronchiseptica 276, and after different incubation times, bacterial counts were done. B. bronchiseptica adhered well to tracheae maintained in culture, and no statistically significant differences between the two models were observed. Noninfected tracheal mucosae maintained a normal appearance for several days, whereas infected mucosae showed typical damage caused by B. bronchiseptica, namely, loss of ciliary activity and cilia and sloughing of ciliated cells. Our data indicated that porcine tracheal organ culture could be advantageously used to study in vitro colonization by B. bronchiseptica.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC184465 | PMC |
| http://dx.doi.org/10.1128/aem.56.6.1523-1529.1990 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Hydrogel Strain Sensors for Integrating Into Dynamic Organ-on-a-Chip.
Small
January 2025
Key Laboratory of Biomass Chemical Engineering (Education Ministry), College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China.
Current hydrogel strain sensors have never been integrated into dynamic organ-on-a-chip (OOC) due to the lack of sensitivity in aqueous cell culture systems. To enhance sensing performance, a novel strain sensor is presented in which the MXene layer is coated on the bottom surface of a pre-stretched anti-swelling hydrogel substrate of di-acrylated Pluronic F127 (F127-DA) and chitosan (CS) for isolation from the cell culture on the top surface. The fabricated strain sensors display high sensitivity (gauge factor of 290.
View Article and Find Full Text PDFBackground: Apolipoprotein C3 (apo C3) is primarily secreted by the liver and is involved in promoting sterile inflammation and organ damage under pathological conditions. Previous studies have shown that apo C3 is abundant in the plasma exosomes of patients with aortic dissection (AD), but its specific role in AD remains unclear.
Methods And Results: In vivo, adeno-associated virus was used to knock down hepatic apo C3 expression in an AD mouse model to assess the impact of liver-derived apo C3 on the development of AD.
The utilisation of biliary organoids for biomedical applications.
Front Bioeng Biotechnol
January 2025
Department of Hepatobiliary Surgery, Haikou Affiliated Hospital of Central South University Xiangya School of Medicine, Haikou, Hainan, China.
Biliary duct injury, biliary atresia (BA), biliary tract tumors, primary sclerosing cholangitis (PSC), and other diseases are commonly encountered in clinical practice within the digestive system. To gain a better understanding of the pathogenesis and development of these diseases and explore more effective treatment methods, organoid technology has recently garnered significant attention. Organoids are three-dimensional structures derived from stem/progenitor cells that can faithfully mimic the intricate structure and physiological function of tissues or organs .
View Article and Find Full Text PDFOptimizing the regenerative potential of vaginal fibroblasts: The role of autologous platelet-rich plasma and hyaluronic acid in vitro.
Maturitas
January 2025
Faculty of Medicine, Geneva University, 1205 Geneva, Switzerland; Department of Pediatrics, Gynecology and Obstetrics, Division of Gynecology, Urogynecology Unit, Geneva University Hospitals, Geneva, Switzerland. Electronic address:
Objective: Many postmenopausal women suffering from vulvovaginal atrophy are looking for non-hormonal treatments. Platelet-rich plasma (PRP) therapy has emerged as a novel and promising approach for gynecological applications. PRP is an autologous blood product rich in growth factors used to stimulate tissue regeneration.
View Article and Find Full Text PDFanalysis of lncRNA-miRNA-mRNA signatures related to Sorafenib effectiveness in liver cancer cells.
World J Gastroenterol
January 2025
Department of Oncology Surgery, Cell Therapy and Organ Transplantation, Institute of Biomedicine of Seville, Virgen del Rocio University Hospital, Seville 41013, Spain.
Background: Hepatocellular carcinoma (HCC) is the most common subtype of primary liver cancer with varied incidence and epidemiology worldwide. Sorafenib is still a recommended treatment for a large proportion of patients with advanced HCC. Different patterns of treatment responsiveness have been identified in differentiated hepatoblastoma HepG2 cells and metastatic HCC SNU449 cells.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!