Many of the panelists on the cellular, tissue and gene therapies panel were researchers, not doctors who treat patients.

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Also, the panel that looked at Provenge was the one for cellular, tissue and gene therapies, not the panel that normally deals with cancer drugs.

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Without the enzyme, the body is unable to effectively "clean up" the connective tissue in the bones, meaning it can't sweep away damaged cellular detritus or foreign bacteria.

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