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Mazeh H, Cohen O, Mizrahi I, Hamburger T, Stojadinovic A, Abu-Wasel B, Alaiyan B, Freund HR, Eid A, Nissan A. Prospective validation of a surgical complications grading system in a cohort of 2114 patients. J Surg Res 2014; 188:30-6. [DOI: 10.1016/j.jss.2013.12.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 11/19/2013] [Accepted: 12/06/2013] [Indexed: 01/04/2023]
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Alaiyan B, Ilyayev N, Stojadinovic A, Izadjoo M, Roistacher M, Pavlov V, Tzivin V, Halle D, Pan H, Trink B, Gure AO, Nissan A. Differential expression of colon cancer associated transcript1 (CCAT1) along the colonic adenoma-carcinoma sequence. BMC Cancer 2013; 13:196. [PMID: 23594791 PMCID: PMC3639026 DOI: 10.1186/1471-2407-13-196] [Citation(s) in RCA: 114] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2012] [Accepted: 02/21/2013] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The transition from normal epithelium to adenoma and, to invasive carcinoma in the human colon is associated with acquired molecular events taking 5-10 years for malignant transformation. We discovered CCAT1, a non-coding RNA over-expressed in colon cancer (CC), but not in normal tissues, thereby making it a potential disease-specific biomarker. We aimed to define and validate CCAT1 as a CC-specific biomarker, and to study CCAT1 expression across the adenoma-carcinoma sequence of CC tumorigenesis. METHODS Tissue samples were obtained from patients undergoing resection for colonic adenoma(s) or carcinoma. Normal colonic tissue (n = 10), adenomatous polyps (n = 18), primary tumor tissue (n = 22), normal mucosa adjacent to primary tumor (n = 16), and lymph node(s) (n = 20), liver (n = 8), and peritoneal metastases (n = 19) were studied. RNA was extracted from all tissue samples, and CCAT1 expression was analyzed using quantitative real time-PCR (qRT-PCR) with confirmatory in-situ hybridization (ISH). RESULTS Borderline expression of CCAT1 was identified in normal tissue obtained from patients with benign conditions [mean Relative Quantity (RQ) = 5.9]. Significant relative CCAT1 up-regulation was observed in adenomatous polyps (RQ = 178.6 ± 157.0; p = 0.0012); primary tumor tissue (RQ = 64.9 ± 56.9; p = 0.0048); normal mucosa adjacent to primary tumor (RQ = 17.7 ± 21.5; p = 0.09); lymph node, liver and peritoneal metastases (RQ = 11,414.5 ± 12,672.9; 119.2 ± 138.9; 816.3 ± 2,736.1; p = 0.0001, respectively). qRT-PCR results were confirmed by ISH, demonstrating significant correlation between CCAT1 up-regulation measured using these two methods. CONCLUSION CCAT1 is up-regulated across the colon adenoma-carcinoma sequence. This up-regulation is evident in pre-malignant conditions and through all disease stages, including advanced metastatic disease suggesting a role in both tumorigenesis and the metastatic process.
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Affiliation(s)
- Bilal Alaiyan
- The Surgical Oncology Laboratory, Department of Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, POB 12000, Jerusalem, 91120, Israel
| | - Nadia Ilyayev
- The Surgical Oncology Laboratory, Department of Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, POB 12000, Jerusalem, 91120, Israel
| | - Alexander Stojadinovic
- Diagnostics and Translational Research Center Henry M Jackson Foundation for the Advancement of Military Medicine, Gaithersburg, MD, 20879, USA
- The Department of Surgery, Division of Surgical Oncology, Walter Reed National Medical Center, Bethesda, MD, USA
| | - Mina Izadjoo
- Diagnostics and Translational Research Center Henry M Jackson Foundation for the Advancement of Military Medicine, Gaithersburg, MD, 20879, USA
| | - Marina Roistacher
- The Surgical Oncology Laboratory, Department of Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, POB 12000, Jerusalem, 91120, Israel
| | - Vera Pavlov
- The Surgical Oncology Laboratory, Department of Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, POB 12000, Jerusalem, 91120, Israel
| | - Victoria Tzivin
- The Surgical Oncology Laboratory, Department of Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, POB 12000, Jerusalem, 91120, Israel
| | - David Halle
- The Surgical Oncology Laboratory, Department of Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, POB 12000, Jerusalem, 91120, Israel
| | - Honguang Pan
- Diagnostics and Translational Research Center Henry M Jackson Foundation for the Advancement of Military Medicine, Gaithersburg, MD, 20879, USA
| | - Barry Trink
- Johns Hopkins School of Medicine, Baltimore, MA, USA
| | - Ali O Gure
- Department of Molecular Biology and Genetics, Bilkent University, Ankara, Turkey
| | - Aviram Nissan
- The Surgical Oncology Laboratory, Department of Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, POB 12000, Jerusalem, 91120, Israel
- Department of Surgery, Hadassah-Hebrew University Medical Center Ein Kerem, Jerusalem, Israel
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Mazeh H, Alaiyan B, Vald O, Mizrahi I, Klimov A, Eid A, Freund HR. Internal mammary artery injury during central venous catheter insertion for TPN: Rare but fatal. Nutrition 2010; 26:849-51. [DOI: 10.1016/j.nut.2010.01.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2009] [Revised: 11/16/2009] [Accepted: 01/01/2010] [Indexed: 10/19/2022]
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