AI Article Synopsis
Article Abstract
Following free grafting of septal mucosa from the rat to the rectus abdominis muscle, the mucosal membrane was found to degenerate into a flat squamous epithelium with loss of the majority of differentiated epithelial cells. Both the goblet cells and ciliated cells regenerated from stem cells, which appear in large numbers 2 days after transplantation. Microvilli were found initially on the surfaces of developing ciliated cells and were replaced 21 days post-grafting by cilia. The number of goblet cells during regeneration at first exceeded that of the ciliated cells, but decreased with the passage of time. After 4 months there were more ciliated cells, with the respiratory epithelium now appearing no different than the initially transplanted nasal mucosa.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/BF00192254 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A 3D Model of the Human Lung Airway for Evaluating Permeability of Inhaled Drugs.
ACS Pharmacol Transl Sci
January 2025
Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, United States Food and Drug Administration (FDA), Silver Spring, Maryland 20993, United States.
Current in vitro cell-based methods, relying on single cell types, have structural and functional limitations in determining lung drug permeability, which is a contributing factor affecting both local and systemic drug levels. To address this issue, we investigated a 3D human lung airway model generated using a cell culture insert, wherein primary human lung epithelial and endothelial cells were cocultured at an air-liquid interface (ALI). To ensure that the cell culture mimics the physiological and functional characteristics of airway tissue, the model was characterized by evaluating several parameters such as cellular confluency, ciliation, tight junctions, mucus-layer formation, transepithelial electrical resistance, and barrier function through assaying fluorescein isothiocyanate-dextran permeability.
View Article and Find Full Text PDFHigh BMP7 Expression May Worsen Airway Disease in COPD by Altering Epithelial Cell Behavior.
Int J Chron Obstruct Pulmon Dis
January 2025
Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China.
Purpose: Airway disease is the main pathological basis of chronic obstructive pulmonary disease (COPD), but the underlying mechanisms are unknown. Bone morphogenetic protein-7 (BMP7) is a multi-functional growth factor that belongs to the transforming growth factor superfamily, which affects the regulation of proliferation, differentiation, and apoptosis. Previous research has shown that BMP7 is highly expressed in the airway epithelia of patients with COPD, but its role in airway disease has not been fully elucidated.
View Article and Find Full Text PDFThe Calicophoron daubneyi genome provides new insight into mechanisms of feeding, eggshell synthesis and parasite-microbe interactions.
BMC Biol
January 2025
School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast, Northern Ireland, UK.
Background: The rumen fluke, Calicophoron daubneyi, is the major paramphistome species infecting ruminants within Europe. Adult flukes reside within the rumen where they are in direct contact with a unique collection of microorganisms. Here, we report a 1.
View Article and Find Full Text PDFMotile cilia modulate neuronal and astroglial activity in the zebrafish larval brain.
Cell Rep
January 2025
Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Erling Skjalgssons Gate 1, 7491 Trondheim, Norway; Kavli Institute for Systems Neuroscience and Centre for Algorithms in the Cortex, Norwegian University of Science and Technology, Olav Kyrres Gate 9, 7030 Trondheim, Norway. Electronic address:
The brain uses a specialized system to transport cerebrospinal fluid (CSF), consisting of interconnected ventricles lined by motile ciliated ependymal cells. These cells act jointly with CSF secretion and cardiac pressure gradients to regulate CSF dynamics. To date, the link between cilia-mediated CSF flow and brain function is poorly understood.
View Article and Find Full Text PDFHuman fallopian tube organoids provide a favourable environment for sperm motility.
Hum Reprod
January 2025
IRSD, Université de Toulouse, INSERM, INRAE, ENVT, Univ Toulouse III-Paul Sabatier (UPS), Toulouse, France.
Study Question: Does a human fallopian tube (HFT) organoid model offer a favourable apical environment for human sperm survival and motility?
Summary Answer: After differentiation, the apical compartment of a new HFT organoid model provides a favourable environment for sperm motility, which is better than commercial media.
What Is Known Already: HFTs are the site of major events that are crucial for achieving an ongoing pregnancy, such as gamete survival and competence, fertilization steps, and preimplantation embryo development. In order to better understand the tubal physiology and tubal factors involved in these reproductive functions, and to improve still suboptimal in vitro conditions for gamete preparation and embryo culture during IVF, we sought to develop an HFT organoid model from isolated adult stem cells to allow spermatozoa co-culture in the apical compartment.
Want 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!