PMID- 24212937 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20131111 LR - 20240109 IS - 2072-6694 (Print) IS - 2072-6694 (Electronic) IS - 2072-6694 (Linking) VI - 3 IP - 3 DP - 2011 Jul 13 TI - Two Domains of Vimentin Are Expressed on the Surface of Lymph Node, Bone and Brain Metastatic Prostate Cancer Lines along with the Putative Stem Cell Marker Proteins CD44 and CD133. PG - 2870-85 LID - 10.3390/cancers3032870 [doi] AB - Vimentin was originally identified as an intermediate filament protein present only as an intracellular component in many cell types. However, this protein has now been detected on the surface of a number of different cancer cell types in a punctate distribution pattern. Increased vimentin expression has been indicated as an important step in epithelial-mesenchymal transition (EMT) required for the metastasis of prostate cancer. Here, using two vimentin-specific monoclonal antibodies (SC5 and V9 directed against the coil one rod domain and the C-terminus of the vimentin protein, respectively), we examined whether either of these domains would be displayed on the surface of three commonly studied prostate cancer cell lines isolated from different sites of metastases. Confocal analysis of LNCaP, PC3 and DU145 prostate cancer cell lines (derived from lymph node, bone or brain prostate metastases, respectively) demonstrated that both domains of vimentin are present on the surface of these metastatic cancer cell types. In addition, flow cytometric analysis revealed that vimentin expression was readily detected along with CD44 expression but only a small subpopulation of prostate cancer cells expressed vimentin and the putative stem cell marker CD133 along with CD44. Finally, Cowpea mosaic virus (CPMV) nanoparticles that target vimentin could bind and internalize into tested prostate cancer cell lines. These results demonstrate that at least two domains of vimentin are present on the surface of metastatic prostate cancer cells and suggest that vimentin could provide a useful target for nanoparticle- or antibody- cancer therapeutic agents directed against highly invasive cancer and/or stem cells. FAU - Steinmetz, Nicole F AU - Steinmetz NF AD - Case Western Reserve University, Department of Biomedical Engineering, 10900 Euclid Ave, Cleveland, OH 44106, USA. tbraciak@tpims.org. FAU - Maurer, Jochen AU - Maurer J FAU - Sheng, Huiming AU - Sheng H FAU - Bensussan, Armand AU - Bensussan A FAU - Maricic, Igor AU - Maricic I FAU - Kumar, Vipin AU - Kumar V FAU - Braciak, Todd A AU - Braciak TA LA - eng GR - R00 EB009105/EB/NIBIB NIH HHS/United States GR - R01 CA100660/CA/NCI NIH HHS/United States PT - Journal Article DEP - 20110713 PL - Switzerland TA - Cancers (Basel) JT - Cancers JID - 101526829 PMC - PMC3759176 EDAT- 2011/01/01 00:00 MHDA- 2011/01/01 00:01 PMCR- 2011/07/13 CRDT- 2013/11/12 06:00 PHST- 2011/05/24 00:00 [received] PHST- 2011/06/27 00:00 [revised] PHST- 2011/07/06 00:00 [accepted] PHST- 2013/11/12 06:00 [entrez] PHST- 2011/01/01 00:00 [pubmed] PHST- 2011/01/01 00:01 [medline] PHST- 2011/07/13 00:00 [pmc-release] AID - cancers3032870 [pii] AID - cancers-03-02870 [pii] AID - 10.3390/cancers3032870 [doi] PST - epublish SO - Cancers (Basel). 2011 Jul 13;3(3):2870-85. doi: 10.3390/cancers3032870.