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- Circulating_tumor_cell abstract "Circulating tumor cells (CTCs) are cells that have shed into the vasculature from a primary tumor and circulate in the bloodstream. CTCs thus constitute seeds for subsequent growth of additional tumors (metastasis) in vital distant organs, triggering a mechanism that is responsible for the vast majority of cancer-related deaths.CTCs were observed for the first time in 1869 in the blood of a man with metastatic cancer by Thomas Ashworth, who postulated that “cells identical with those of the cancer itself being seen in the blood may tend to throw some light upon the mode of origin of multiple tumours existing in the same person”. A thorough comparison of the morphology of the circulating cells to tumor cells from different lesions led Ashworth to conclude that “One thing is certain, that if they [CTC] came from an existing cancer structure, they must have passed through the greater part of the circulatory system to have arrived at the internal saphena vein of the sound leg”.The importance of CTC's in modern cancer research began in the mid 1990's with the demonstration [J. Uhr, UT-Dallas, L. Terstappen and P. Liberti, Immunicon, Philadelphia] that CTC's exist early on in the course of the disease. Those results were made possible by exquisitely sensitive magnetic separation technology employing Ferrofluids (colloidal magnetic nanoparticles) and high gradient magnetic separators invented by Liberti at Immunicon and motivated by theoretical calculations by Liberti and Terstappen that indicated very small tumors shedding cells at less than 1.0 % per day should result in detectable cells in blood. A variety of other technologies have been applied to CTC enumeration and identification since that time.Modern cancer research has demonstrated that CTCs derive from clones in the primary tumor, validating Ashworth's remarks. The significant efforts put into understanding the CTCs biological properties have demonstrated the critical role circulating tumor cells play in the metastatic spread of carcinoma.Furthermore, highly sensitive, single-cell analysis demonstrated a high level of heterogeneity seen at the single cell level for both protein expression and protein localization and the CTCs reflected both the primary biopsy and the changes seen in the metastatic sites. Tissue biopsies are poor diagnostic procedures: they are invasive, cannot be used repeatedly, and are ineffective in understanding metastatic risk, disease progression, and treatment effectiveness. CTCs thus could be considered a “liquid biopsy” which reveals metastasis in action, providing live information about the patient’s disease status. Analysis of blood samples found a propensity for increased CTC detection as the disease progressed in individual patients. Blood tests are easy and safe to perform and multiple samples can be taken over time. By contrast, analysis of solid tumors necessitates invasive procedures that might limit patient compliance. The ability to monitor disease progression over time could facilitate appropriate modification to a patient's therapy, potentially improving their prognosis and quality of life.To this end, technologies with the requisite sensitivity and reproducibility to detect CTCs in patients with metastatic disease have recently been developed.".
- Circulating_tumor_cell thumbnail FrequencyOfCTCinBlood.JPG?width=300.
- Circulating_tumor_cell wikiPageExternalLink 124116-142.
- Circulating_tumor_cell wikiPageExternalLink 124394-142.
- Circulating_tumor_cell wikiPageExternalLink ViewAbstract.aspx?mID=3404&sKey=4d804972-fd54-44d1-9ea3-d0bd76c62d53&cKey=2907d2dc-f168-4dee-892e-45d7f0c555e1&mKey=6ffe1446-a164-476a-92e7-c26446874d93.
- Circulating_tumor_cell wikiPageExternalLink product_works_104.
- Circulating_tumor_cell wikiPageID "16806609".
- Circulating_tumor_cell wikiPageLength "47389".
- Circulating_tumor_cell wikiPageOutDegree "35".
- Circulating_tumor_cell wikiPageRevisionID "680872033".
- Circulating_tumor_cell wikiPageWikiLink Androgen_receptor.
- Circulating_tumor_cell wikiPageWikiLink Apoptosis.
- Circulating_tumor_cell wikiPageWikiLink Bcl-2.
- Circulating_tumor_cell wikiPageWikiLink Bloodstream.
- Circulating_tumor_cell wikiPageWikiLink CD45.
- Circulating_tumor_cell wikiPageWikiLink Carcinoma.
- Circulating_tumor_cell wikiPageWikiLink Category:Anatomical_pathology.
- Circulating_tumor_cell wikiPageWikiLink Category:Oncology.
- Circulating_tumor_cell wikiPageWikiLink Circulatory_system.
- Circulating_tumor_cell wikiPageWikiLink Cytokeratin.
- Circulating_tumor_cell wikiPageWikiLink Cytokeratins.
- Circulating_tumor_cell wikiPageWikiLink EpCAM.
- Circulating_tumor_cell wikiPageWikiLink Epithelial-mesenchymal_transition.
- Circulating_tumor_cell wikiPageWikiLink Epithelial_cell_adhesion_molecule.
- Circulating_tumor_cell wikiPageWikiLink Epithelial–mesenchymal_transition.
- Circulating_tumor_cell wikiPageWikiLink File:CTCKaplanMeier.JPG.
- Circulating_tumor_cell wikiPageWikiLink File:FrequencyOfCTCinBlood.JPG.
- Circulating_tumor_cell wikiPageWikiLink Fluorescence_in_situ_hybridization.
- Circulating_tumor_cell wikiPageWikiLink Food_and_Drug_Administration.
- Circulating_tumor_cell wikiPageWikiLink neu.
- Circulating_tumor_cell wikiPageWikiLink Her2.
- Circulating_tumor_cell wikiPageWikiLink ISET_Test.
- Circulating_tumor_cell wikiPageWikiLink Immunofluorescence.
- Circulating_tumor_cell wikiPageWikiLink Insulin-like_growth_factor_1_receptor.
- Circulating_tumor_cell wikiPageWikiLink Magnetic-activated_cell_sorting.
- Circulating_tumor_cell wikiPageWikiLink Metastasis.
- Circulating_tumor_cell wikiPageWikiLink Morphology_(biology).
- Circulating_tumor_cell wikiPageWikiLink Neoplasm.
- Circulating_tumor_cell wikiPageWikiLink PTEN_(gene).
- Circulating_tumor_cell wikiPageWikiLink PTPRC.
- Circulating_tumor_cell wikiPageWikiLink Prostate-specific_antigen.
- Circulating_tumor_cell wikiPageWikiLink Stem_cell.
- Circulating_tumor_cell wikiPageWikiLink Stem_cells.
- Circulating_tumor_cell wikiPageWikiLink Survival_rate.
- Circulating_tumor_cell wikiPageWikiLink Trastuzumab.
- Circulating_tumor_cell wikiPageWikiLink Tumor_cell.
- Circulating_tumor_cell wikiPageWikiLink File:CTC_-_in_situ_RNA_hybridization.jpg.
- Circulating_tumor_cell wikiPageWikiLinkText "CTC".
- Circulating_tumor_cell wikiPageWikiLinkText "Circulating tumor cell".
- Circulating_tumor_cell wikiPageWikiLinkText "Circulating tumor cell#CellSearch Method".
- Circulating_tumor_cell wikiPageWikiLinkText "circulating tumor cell".
- Circulating_tumor_cell wikiPageWikiLinkText "circulating tumor cells (CTCs)".
- Circulating_tumor_cell wikiPageWikiLinkText "periphery".
- Circulating_tumor_cell wikiPageWikiLinkText "screening method".
- Circulating_tumor_cell hasPhotoCollection Circulating_tumor_cell.
- Circulating_tumor_cell wikiPageUsesTemplate Template:Reflist.
- Circulating_tumor_cell subject Category:Anatomical_pathology.
- Circulating_tumor_cell subject Category:Oncology.
- Circulating_tumor_cell hypernym Cells.
- Circulating_tumor_cell type AnatomicalStructure.
- Circulating_tumor_cell type Article.
- Circulating_tumor_cell type Article.
- Circulating_tumor_cell type Specialty.
- Circulating_tumor_cell comment "Circulating tumor cells (CTCs) are cells that have shed into the vasculature from a primary tumor and circulate in the bloodstream.".
- Circulating_tumor_cell label "Circulating tumor cell".
- Circulating_tumor_cell sameAs Ringlevad_kasvajarakud.
- Circulating_tumor_cell sameAs Cellule_tumorale_circulante.
- Circulating_tumor_cell sameAs CTC.
- Circulating_tumor_cell sameAs m.0406v3l.
- Circulating_tumor_cell sameAs Q5121689.
- Circulating_tumor_cell sameAs Q5121689.
- Circulating_tumor_cell sameAs 外周循环肿瘤细胞.
- Circulating_tumor_cell wasDerivedFrom Circulating_tumor_cell?oldid=680872033.
- Circulating_tumor_cell depiction FrequencyOfCTCinBlood.JPG.
- Circulating_tumor_cell isPrimaryTopicOf Circulating_tumor_cell.