Graph showing Tumor weight versus days since Subcutaneous implant of the HCC-2998 tumor in Nu/Nu NCR mice. There were three groups in the study. Group 1: 1x10^7 cells were implanted SC bilaterally [Passage 1]. 100% Take Rate Group 2: Fragments were implanted SC bilaterally [Passage 4]. 89% Take Rate Group 3: Fragments were implanted SC bilaterally [Passage 10]. 100% Take Rate Notes: Animals were bilaterally implanted for subsequent tumor collection and microarray studies.To ensure standardization in data reporting, only right tumor values were utilized for growth data associated with microarray studies. P1 [Group 1] Notes: Ten animals were assigned to this group. P4 [Group 2] Notes: Nine animals were assigned to this group. One animal in this group failed to establish tumor growth on the right side [Take rate reflects this animal]- while only right tumor values were used for calculations, it is important to note that there was progressive tumor growth in the left tumor of this animal. P10 [Group 3] Notes: Eight animals were assigned to this group.