natural mouse TNF-alpha (re-post)

[Koji Yasutomo]

Hi colleagues,

I am working on the role of TNF-alpha in thymopoiesis.  I know that the
recombinant mouse TNF-alpha is commercially available but I want to use
natural mouse TNF-alpha in my experiments.  I would greatly appreciate
receiving any information on who could possibly provide us natural mouse
TNF-alpha.

Thank you in advance.

Koji Yasutomo