Intranasal Immunization with BCG in a Mouse Model

0 weergaven2:16 min • July 8th, 2025

Loading...
$$\rightleftharpoonup{xx}$$ $$\longleftharp{xx}$$, $$\longrightharp{xx}$$,

Start with an anesthetized mouse and administer a live-attenuated BCG strain of Mycobacterium bovis, which has reduced disease-causing ability, through the mouse's nose.

The injected bacteria stimulate an immune response in the lung tissue and nearby lymph node.

This leads to the generation of effector T cells and B cells that enter the mouse's circulation.

The effector B cells produce antibodies against mycobacteria.

Meanwhile, the effector T cells settle in the lung tissue as resident memory T cells or TRM cells, providing long-term immunity.

To assess the effectiveness of immunization, administer live, virulent mycobacteria with disease-causing ability through the mouse's nose.

This triggers the activation of TRM cells in the lung tissue.

Activated TRM cells release cytokines, attracting other immune cells, including effector B cells.

These B cells secrete antibodies that bind to mycobacteria, enhancing their clearance by neutrophils, indicating successful immunization.

For intranasal administration, load a micropipette with 20 microliters of the BCG suspension, and place the anesthetized mouse in the supine position inside the hood. Administer the inoculum dropwise between the two nostrils until the entire 20-microliter volume has been deposited, leaving time between the drops to allow the mouse to inhale the suspension. Then, reload the micropipette with another 20 microliters of bacteria and repeat the administration.

For intranasal challenge with the H37Rv Mycobacterium tuberculosis strain, at the appropriate experimental time point post-vaccination, inoculate the animals with intranasal administration of 40 microliters of the H37Rv bacterial suspension as just demonstrated.

10:11

Expressie van exogene antigenen in de Mycobacterium bovis -BCG-vaccin via niet-genetische oppervlak decoratie met het systeem Avidin-Biotine

Gerelateerde video's

0 Bekeken

09:03

Snelle In Vivo beoordeling van adjuvante van cytotoxische T-lymfocyten de mogelijkheden van de generatie voor vaccinontwikkeling

Gerelateerde video's

0 Bekeken

12:54

Bepaling van de immunogeniciteit van het vaccin met behulp van van runderen monocyten afgeleide dendritische cellen

Gerelateerde video's

0 Bekeken

08:18

Evaluation of Vaccine-Induced Immunity Against Bacterial Infection in a Mouse Model

Gerelateerde video's

0 Bekeken

07:33

Intralymfatische Immunotherapie en Vaccinatie in Muizen

Gerelateerde video's

0 Bekeken

16:56

Sublinguale immunotherapie als een alternatief voor bescherming tegen acute luchtwegeninfecties Induce

Gerelateerde video's

0 Bekeken

08:00

Intubatie-gemedieerde Intratracheaal (IMIT) Blaasinstillatie: een niet-invasieve, Lung-specifieke Delivery System

Gerelateerde video's

0 Bekeken

10:39

Intranasale toediening van recombinante Influenza Vaccines in Chimerisch muismodellen om mucosale immuniteit bestuderen

Gerelateerde video's

0 Bekeken

06:32

Beschermende werkzaamheid en Pulmonale immuunrespons na subcutane en intranasale BCG Administration in Muizen

Gerelateerde video's

0 Bekeken

08:52

Evaluatie van de Host-Pathogen reacties en werkzaamheid van het vaccin in muizen

Gerelateerde video's

0 Bekeken

Laatst bijgewerkt: 15 augustus 2026