Human Nasal Polyp

A human nasal polyp is a soft, noncancerous growth arising from chronically inflamed and edematous nasal or sinus mucosa, and it provides a visible model of persistent upper-airway inflammation. In many cases, immune signaling promotes vascular leakage, tissue swelling, and accumulation of inflammatory cells, including eosinophils, which can enlarge the polyp and obstruct normal airflow and sinus drainage. Studying nasal polyps helps researchers investigate chronic rhinosinusitis, type 2 immune responses, and interactions between host inflammation and infection. Polyp tissue can also support biomarker discovery and evaluation of targeted anti-inflammatory treatments.

Human Nasal Polyp - Related Videos

Research

JoVE Journal - Neuroscience
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Isolating Nasal Olfactory Stem Cells from Rodents or Humans

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Cited by 98 •

2011

We describe here a method for biopsying olfactory mucosa from rat and human nasal cavities. These biopsies can be used for either identifying molecular anomalies in brain diseases or isolating multipotent adult stem cells that can be utilized for cell transplantation in animal models of brain trauma/disease.

Research

JoVE Journal - Biology

Culturing of Human Nasal Epithelial Cells at the Air Liquid Interface

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Cited by 135 •

2013

Nasal epithelial cells, obtained through superficial scrape biopsy of human volunteers, are expanded and transferred onto tissue culture inserts. Upon reaching confluency, cells are grown at air liquid interface, yielding cultures of ciliated and non-ciliated cells. Differentiated nasal epithelial cell cultures provide viable experimental models for studying the respiratory mucosa.

Investigating the Three-dimensional Flow Separation Induced by a Model Vocal Fold Polyp

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Cited by 2 •

2014

Vocal fold polyps can disrupt vocal fold dynamics and thus can have devastating consequences on a patient's ability to communicate. Three-dimensional flow separation induced by a wall-mounted model polyp and its impact on the wall pressure loading are examined using particle image velocimetry, skin friction line visualization, and wall pressure measurements.

Viral Growth in Human Nasal Epithelial Cells Cultured at an Air-Liquid Interface

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2026

Source: Otter, C. J., et al. Infection of Primary Nasal Epithelial Cells Grown at an Air-Liquid Interface to Characterize Human Coronavirus-Host Interactions. J. Vis. Exp. (2023)This video demonstrates the growth of coronavirus in human nasal epithelial cells cultured at an air-liquid interface, mimicking infection and viral replication in the human nasal cavity.

Culture and Imaging of Human Nasal Epithelial Organoids

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Cited by 3 •

2021

A detailed protocol is presented here to describe an in vitro organoid model from human nasal epithelial cells. The protocol has options for measurements requiring standard laboratory equipment, with additional possibilities for specialized equipment and software.

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