isolate secreted proteins - (Jun/04/2004 )

I'm a lowly undergrad. Please help me out . I am looking to isolate secreted proteins from smooth muscle tissue I don't have an assay for any one particular protein, I just want to western blot all proteins secreted by a tissue sample. If this is feasible, can you give me a protocol or product link?

Dear Lowly undergrad

What is the primary state of your tissue sample? Frozen/freshly isolated/cell culture/ etc-

freshly isolated from mice. ( my PI does not want to do a genetic screen - which would make my job a lot easier) . any advice?

Judy

The first step would be to keep the dynamic action within the tissue going on for some time. You can use Ringer's solution but standard PBS at 37C would work just fine. Allow the freshly isolated tissue to soak in the buffer for 90-120 min at 37C. Recover buffer. Wash the tissue carefully to recover adhering proteins. Proceed to concentrating the solution

Goodluck