Complex sentence: The tissue was harvested from the lymph node metastasis of a male patient with hormone refractory prostate cancer which was then xenografted into SCID mice and later harvested and plated on tissue culture dishes, where it can be propagated as an immortalized prostate cancer cell line.
Split into simpler sentences: The tissue was harvested from the lymph node metastasis of a male patient with hormone refractory prostate cancer. This tissue was then xenografted into SCID mice and later harvested and plated on tissue culture dishes, where it can now be propagated as an immortalized prostate cancer cell line.