- 作者: June L. Traicoff; Joon-Yong Chung; Till Braunschweig; Ilya Mazo; Youmin Shu; Arun Ramesh; Mark W. DAmico; Mikhail M. Galperin; Vladimir Knezevic; Stephen M. Hewitt
- 作者服務機構: 1 20/20 GeneSystems, Inc., Rockville, MD, 20850, USA; ; 2 Tissue Array Research Program, Laboratory of Pathology, National Cancer Institute, Bethesda, MD, 20892-4605, USA; 3 Ariadne Genomics, Inc., Rockville, MD, 20850, USA; ; 4 GeneHarbor, Inc., Rockville, MD, 20850, USA; ; 5 PharmacoGenomics Research Center and Molecular Cell Physiology Research Group, Inje University College of Medicine, Busan, 614-735, Republic of Korea
- 中文摘要: --
- 英文摘要: Alterations in eIF3-p48/INT6 gene expression have been implicated in murine and human mammary carcinogenesis. We examined levels of INT6 protein in human tumors and determined that breast and colon tumors clustered into distinct groups based on levels of INT6 expression and clinicopathological variables. We performed multiplex tissue immunoblotting of breast, colon, lung, and ovarian tumor tissues and found that INT6 protein levels positively correlated with those of TID1, Patched, p53, c-Jun, and phosphorylated-c-Jun proteins in a tissue-specific manner. INT6 and TID1 showed significant positive correlation in all tissue types tested. These findings were confirmed by immunohistochemical staining of INT6 and TID1. Further evidence supporting a cooperative role for INT6 and TID1 is the presence of endogenous INT6 and TIDl proteins as complexes. We detected co-immunoprecipiration between INT6 and TID1, as well as between INT6 and Patched. These findings suggest potential integrated roles for INT6, TID1, and Patched proteins in cell growth, development, and tumorigenesis. Additionally, these data suggest that the combination of INT6, TID1, and Patched protein levels may be useful biomarkers for the development of diagnostic assays.
- 中文關鍵字: --
- 英文關鍵字: INT6, layered expression scanning, MLWestern, multiplex tissue immunoblotting, Patched, TID1