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Induction of Paralysis and Visual System Injury in Mice by T Cells Specific for Neuromyelitis Optica Autoantigen Aquaporin-4

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POLIOMYELITIS AND THE LYMPHATIC APPARATUS.

J M Yoffey¹, C K Drinker

¹Department of Physiology, The Harvard School of Public Health, Boston.

The Journal of Experimental Medicine

|October 30, 2009

Summary

Poliomyelitis virus was not found in the lymph of rhesus monkeys after intranasal or intracerebral inoculation. This suggests limited systemic spread of the Toomey "T" strain via these routes in this primate model.

Area of Science:

Virology
Primate Immunology
Infectious Diseases

Background:

Poliomyelitis is a highly contagious viral disease.
Understanding poliovirus transmission routes is crucial for disease control.
Rhesus monkeys are a common model for studying poliovirus infection.

Purpose of the Study:

To investigate the presence of poliovirus in lymphatic systems of rhesus monkeys.
To determine if intranasal or intracerebral inoculation leads to detectable levels of poliovirus in cervical or thoracic duct lymph.

Main Methods:

Rhesus monkeys were inoculated with the Toomey "T" strain of poliovirus.
Samples of cervical and thoracic duct lymph were collected post-inoculation.
Lymph samples were analyzed for the presence of poliovirus.

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Main Results:

The Toomey "T" strain of poliovirus was not detected in any cervical or thoracic duct lymph samples.
This indicates a lack of detectable viremia or lymphatic dissemination through these specific inoculation routes.

Conclusions:

Intranasal or intracerebral inoculation of the Toomey "T" strain of poliovirus in rhesus monkeys does not lead to detectable levels in the cervical or thoracic duct lymph.
These findings suggest that lymphatic spread may not be a primary route for this specific poliovirus strain and inoculation method in this model.