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Zuck J, Eliason J, Thege E, Bruening M. An Examination of Site-Level Predictors of Foods Served in School Meals in Arizona. J Acad Nutr Diet 2021. [DOI: 10.1016/j.jand.2021.06.134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Gaignaux A, Ashton G, Coppola D, De Souza Y, De Wilde A, Eliason J, Grizzle W, Guadagni F, Gunter E, Koppandi I, Shea K, Shi T, Stein JA, Sobel ME, Tybring G, Van den Eynden G, Betsou F. A Biospecimen Proficiency Testing Program for Biobank Accreditation: Four Years of Experience. Biopreserv Biobank 2016; 14:429-439. [PMID: 27195612 DOI: 10.1089/bio.2015.0108] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Biobanks produce and distribute biospecimens, ensuring their fitness for purpose and accurately qualifying them before distribution. In their efforts toward professionalization, biobanks can nowadays seek certification or accreditation. One of the requirements of these standards is regular participation in Proficiency Testing (PT) programs. An international PT program has been developed and provided to biobanks and other laboratories that perform specific tests to qualify different types of biospecimens. This PT program includes biospecimen testing schemes, as well as biospecimen processing interlaboratory exercises. This PT program supports the development of biobank quality assurance by providing the possibility to assess biobank laboratory performance and useful insights into biobank laboratory method performance characteristics and thus fulfill the demands from accreditation authorities.
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Affiliation(s)
| | - Garry Ashton
- 2 Cancer Research UK Manchester Institute , Manchester, United Kingdom
| | | | - Yvonne De Souza
- 4 AIDS Specimen Bank, University of California , San Francisco, San Francisco, California
| | | | - James Eliason
- 6 Great Lakes Stem Cell Innovation Center , Detroit, Michigan
| | - William Grizzle
- 7 Tissue Collection and Banking Facility, University of Alabama , Birmingham, Birmingham, Alabama
| | - Fiorella Guadagni
- 8 BioBIM (Multidisciplinary Interinstitutional Biobank) IRCCS San Raffaele , Rome, Italy
| | | | - Iren Koppandi
- 10 Cellular Technology Limited , Shaker Heights, Ohio
| | | | - Tim Shi
- 12 GlobalMD Network Corporation , Catonsville, Maryland
| | - Julie A Stein
- 13 PPD Vaccines and Biologics Lab , Wayne, Pennsylvania
| | - Mark E Sobel
- 14 American Society for Investigative Pathology , Bethesda, Maryland
| | | | - Gert Van den Eynden
- 16 Molecular Immunology Unit, Institut Jules Bordet , Brussels, Belgium .,17 Pathobiology Group , EORTC, Brussels, Belgium
| | - Fay Betsou
- 1 Integrated Biobank of Luxembourg , Luxembourg, Luxembourg
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Lehmann S, Guadagni F, Moore H, Ashton G, Barnes M, Benson E, Clements J, Koppandi I, Coppola D, Demiroglu SY, DeSouza Y, De Wilde A, Duker J, Eliason J, Glazer B, Harding K, Jeon JP, Kessler J, Kokkat T, Nanni U, Shea K, Skubitz A, Somiari S, Tybring G, Gunter E, Betsou F. Standard preanalytical coding for biospecimens: review and implementation of the Sample PREanalytical Code (SPREC). Biopreserv Biobank 2015; 10:366-74. [PMID: 24849886 DOI: 10.1089/bio.2012.0012] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The first version of the Standard PREanalytical Code (SPREC) was developed in 2009 by the International Society for Biological and Environmental Repositories (ISBER) Biospecimen Science Working Group to facilitate documentation and communication of the most important preanalytical quality parameters of different types of biospecimens used for research. This same Working Group has now updated the SPREC to version 2.0, presented here, so that it contains more options to allow for recent technological developments. Existing elements have been fine tuned. An interface to the Biospecimen Reporting for Improved Study Quality (BRISQ) has been defined, and informatics solutions for SPREC implementation have been developed. A glossary with SPREC-related definitions has also been added.
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Affiliation(s)
| | - D Horne
- University of Michigan, Ann Arbor, Mich
| | | | - J Eliason
- University of Michigan, Ann Arbor, Mich
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Betsou F, Lehmann S, Ashton G, Barnes M, Benson EE, Coppola D, DeSouza Y, Eliason J, Glazer B, Guadagni F, Harding K, Horsfall DJ, Kleeberger C, Nanni U, Prasad A, Shea K, Skubitz A, Somiari S, Gunter E. Standard preanalytical coding for biospecimens: defining the sample PREanalytical code. Cancer Epidemiol Biomarkers Prev 2010; 19:1004-11. [PMID: 20332280 DOI: 10.1158/1055-9965.epi-09-1268] [Citation(s) in RCA: 125] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Management and traceability of biospecimen preanalytical variations are necessary to provide effective and efficient interconnectivity and interoperability between Biobanks. METHODS Therefore, the International Society for Biological and Environmental Repositories Biospecimen Science Working Group developed a "Standard PREanalytical Code" (SPREC) that identifies the main preanalytical factors of clinical fluid and solid biospecimens and their simple derivatives. RESULTS The SPREC is easy to implement and can be integrated into Biobank quality management systems and databases. It can also be extended to nonhuman biorepository areas. Its flexibility allows integration of new novel technological developments in future versions. SPREC version 01 is presented in this article. CONCLUSIONS AND IMPACT Implementation of the SPREC is expected to facilitate and consolidate international multicenter biomarker identification research and biospecimen research in the clinical Biobank environment.
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Affiliation(s)
- Fotini Betsou
- Integrated Biobank of Luxembourg, 6 rue Nicolas Ernest Barblé, L-1210 Luxembourg.
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Vaishampayan UN, Marur S, Heilbrun LK, Cher ML, Dickow B, Smith DW, Al Hasan SA, Eliason J. Phase II trial of capecitabine and weekly docetaxel for metastatic castrate resistant prostate cancer. J Urol 2009; 182:317-23. [PMID: 19447430 DOI: 10.1016/j.juro.2009.02.105] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2008] [Indexed: 11/25/2022]
Abstract
PURPOSE Synergy is observed with the combination of capecitabine and docetaxel due to docetaxel mediated up-regulation of thymidine phosphorylase. A phase II trial was performed with the combination for metastatic, castrate resistant prostate cancer. MATERIALS AND METHODS Eligible patients had metastatic, castrate resistant prostate cancer, no prior chemotherapy for metastatic disease and normal organ function. Docetaxel (36 mg/m(2) per week intravenously) on days 1, 8 and 15, and capecitabine (1,250 mg/m(2) per day in 2 divided doses) on days 5 to 18 were administered in 28-day cycles. The response was assessed every 2 cycles. Biomarker correlative studies were performed on blood dihydropyrimidine dehydrogenase, and the thymidine phosphorylase-to-dihydropyrimidine dehydrogenase and thymidine synthase-to-dihydropyrimidine dehydrogenase ratios in available prostate tumor tissue. RESULTS A total of 30 patients with a median age of 69 years were enrolled in the study. We noted bone pain in 21 patients (70%), Gleason score 8 or higher in 18 (60%), measurable disease progression in 9, bone scan progression in 18 and prostate specific antigen progression in 22. Grade 3 or 4 neutropenia was seen in 3 patients and grade 3 hand-foot syndrome was found in 2. No treatment related deaths occurred. A prostate specific antigen response of 50% or greater decrease was observed in 22 patients (73%), of whom 9 (30%) had 90% or greater decrease. A partial response was noted in 5 of 9 patients (56%) with measurable disease. Median time to progression was 6.7 months (90% CI 4.2-7.7) and median overall survival was 22.0 months (90% CI 18.4-25.3). CONCLUSIONS The combination was well tolerated and it demonstrated favorable response rates with durable remission and survival outcomes.
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Affiliation(s)
- Ulka N Vaishampayan
- Division of Oncology, Department of Internal Medicine, Barbara Ann Karmanos Cancer Institute, Wayne State University, Detroit, Michigan, USA.
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Betsou F, Barnes R, Burke T, Coppola D, Desouza Y, Eliason J, Glazer B, Horsfall D, Kleeberger C, Lehmann S, Prasad A, Skubitz A, Somiari S, Gunter E. Human biospecimen research: experimental protocol and quality control tools. Cancer Epidemiol Biomarkers Prev 2009; 18:1017-25. [PMID: 19336543 DOI: 10.1158/1055-9965.epi-08-1231] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Fotini Betsou
- Centre Hospitalier Universitaire d'Amiens, avenue René Laënnec, Salouel, 80480 France.
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Marur S, Eliason J, Heilbrun LK, Dickow B, Smith DW, Baranowski K, Alhasan S, Vaishampayan U. Phase II trial of capecitabine and weekly docetaxel in metastatic renal cell carcinoma. Urology 2008; 72:898-902. [PMID: 18692873 DOI: 10.1016/j.urology.2008.05.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2007] [Revised: 04/23/2008] [Accepted: 05/03/2008] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To evaluate the toxicity and efficacy of capecitabine and weekly docetaxel in a phase II clinical trial. METHODS Eligibility included metastatic renal cancer with a maximum of 2 prior regimens, performance status of 0-2, and adequate renal, hepatic, and bone marrow function. Docetaxel was administered intravenously at a dose of 36 mg/m(2) weekly on days 1, 8, and 15 of a 28- day cycle and capecitabine was administered orally at a dose of 1800 mg/m(2) from days 5-18. Toxicity was assessed on days 1, 8, and 15 of each cycle, and response was evaluated every 2 cycles. RESULTS Twenty-five patients, 19 white and 6 African American, were enrolled on this phase II trial. The median age was 60 years (range: 39-75 years). Eighteen patients had clear cell histology, 7 had papillary, sarcomatoid, or chromophobe histology. Thirteen had liver/bone metastases and 13 had >or=2 of the Memorial Sloan-Kettering Cancer Center prognostic risk factors. Twelve patients received prior immunotherapy. A total of 93 cycles were administered; median of 3 cycles and range from 0-10 cycles. The therapy was well tolerated. No treatment-related mortality was observed and 2 treatment-related hospitalizations for nausea, diarrhea, and dehydration occurred. Ten patients had stable disease. The median time to progression was 1.7 months and median survival was 11.1 months. CONCLUSIONS The combination of capecitabine and docetaxel was well tolerated in metastatic renal cancer. Clinical activity was predominantly noted in non-clear cell histology in which chemotherapy would be worthy of future investigation.
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Affiliation(s)
- Shanthi Marur
- Division of Oncology, Department of Medicine, Barbara Ann Karmanos Cancer Institute, Wayne State University, Detroit, Michigan, USA.
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Marur S, Eliason J, Heilbrun L, Smith D, Dickow B, Santucci R, Cher M, Forman J, Vaishampayan U. Phase II trial of oral capecitabine (C) and weekly docetaxel (D) in patients with metastatic androgen independent prostate cancer (AIPC). J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.5121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
5121 Background: Due to demonstrated synergistic anti-tumor effect of D and C related to docetaxel-mediated up-regulation of thymidine phosphorylase (TP), a phase II trial with weekly D and C in metastatic AIPC was performed. Endpoints of response and survival were correlated with biomarker levels of TP, dihydropyrimidine dehydrogenase (DPD), thymidylate synthase (TS) in tumor tissue and DPD in serum Methods: Patients with metastatic AIPC, with no prior chemotherapy for metastatic disease were eligible to receive D 36 mg/m2/week IV on days 1,8, and 15 and C 1,250 mg/m2 /day in two divided doses on days 5–18. Cycles were repeated every 28 days and response was assessed every 2 cycles. Biomarker correlative study for Serum DPD and TP/DPD ratio and TS/DPD ratio on tissue were performed using mouse anti-TP, rat anti-DPD and mouse anti-TS monoclonal antibodies Results: 30 patients enrolled with median age of 69 years, median pretherapy PSA of 110 ng/ml (range 1.2 to 3716.9). 21(70%) had bone pain, Gleason score ≥ 8 in 18 (61%) patients; measurable disease progression in 9, bone scan progression in 18 patients and PSA only progression noted in 22 patients. 144 cycles have been administered (range 0–10 cycles). Grade 3 or 4 neutropenia seen in 3 patients and Grade 3 hand-foot syndrome in 2 patients. No treatment related deaths seen. PSA response (≥50% decline) noted in 22 (73.3%) with ≥90% PSA decline in 9 (30%) pts. Measurable disease PR noted in 5 of 9 patients (56 %). Median follow-up is 11 months (range 2.1 to 30.4). Median time to progression is 9.1 months (90% CI 6.2–15.1 months), and the median overall survival (OS) is 18.9 months (90% CI 14.9–26.4 months). 1 year PFS and OS is 44% and 84% respectively. Samples for DPD were available for 25 patients and pre-therapy tumor tissue for 23 patients. Quantitative fluorescence IHC has been performed on available samples, the final analysis is ongoing. Conclusions: The combination is well tolerated and demonstrates favorable and durable remission and survival outcomes. Correlation with biomarker analysis will be reported. This may help in selecting patients more likely to derive benefit from combination of D and C. Supported in part by Aventis Inc. No significant financial relationships to disclose.
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Affiliation(s)
- S. Marur
- Karmanos Cancer Inst, Detroit, MI
| | | | | | - D. Smith
- Karmanos Cancer Inst, Detroit, MI
| | | | | | - M. Cher
- Karmanos Cancer Inst, Detroit, MI
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Luther E, Glazyrin A, Geddie W, Eliason J. 215 POSTER HER2/Neu-Herceptin biomarker development for theranostic management of breast cancer patients. EJC Suppl 2006. [DOI: 10.1016/s1359-6349(06)70220-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Yang LV, Wan J, Ge Y, Fu Z, Kim SY, Fujiwara Y, Taub JW, Matherly LH, Eliason J, Li L. The GATA site-dependent hemogen promoter is transcriptionally regulated by GATA1 in hematopoietic and leukemia cells. Leukemia 2006; 20:417-25. [PMID: 16437149 DOI: 10.1038/sj.leu.2404105] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Hemgn (a gene symbol for hemogen in mouse, EDAG in human and RP59 in rat) encodes a nuclear protein that is highly expressed in hematopoietic tissues and acute leukemia. To characterize its regulatory mechanisms, we examined the activities of a Hemgn promoter containing 2975 bp of 5' flanking sequence and 196 bp of 5' untranslated region (5' UTR) sequence both in vitro and in vivo: this promoter is preferentially activated in a hematopoietic cell line, not in nonhematopoietic cell lines, and is sufficient to drive the transcription of a lacZ transgene in hematopoietic tissues in transgenic mice. Mutagenesis analyses showed that the 5' UTR including two highly conserved GATA boxes is critical for the promoter activity. GATA1, not GATA2, binds to the GATA binding sites and transactivates the Hemgn promoter in a dose-dependent manner. Furthermore, the expression of human hemogen (EDAG) transcripts were closely correlated with levels of GATA1 transcripts in primary acute myeloid leukemia specimens. This study suggests that the Hemgn promoter contains critical regulatory elements for its transcription in hematopoietic tissues and Hemgn is a direct target of GATA1 in leukemia cells.
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Affiliation(s)
- L V Yang
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI, USA
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Vaishampayan UN, Heilbrun L, Eliason J, Pontes E, Powell I, Forman J. Docetaxel and capecitabine in metastatic androgen independent prostate cancer (AIPC): Phase II trial to detect clinical efficacy of a synergistic combination. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.4703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | - L. Heilbrun
- Wayne State University/Karmanos Cancer Institute, Detroit, MI
| | - J. Eliason
- Wayne State University/Karmanos Cancer Institute, Detroit, MI
| | - E. Pontes
- Wayne State University/Karmanos Cancer Institute, Detroit, MI
| | - I. Powell
- Wayne State University/Karmanos Cancer Institute, Detroit, MI
| | - J. Forman
- Wayne State University/Karmanos Cancer Institute, Detroit, MI
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Li Y, Hussain M, Sarkar SH, Eliason J, Li R, Sarkar FH. Gene expression profiling revealed novel mechanism of action of Taxotere and Furtulon in prostate cancer cells. BMC Cancer 2005; 5:7. [PMID: 15656911 PMCID: PMC548501 DOI: 10.1186/1471-2407-5-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2004] [Accepted: 01/18/2005] [Indexed: 11/29/2022] Open
Abstract
Background Both Taxotere and Capecitabine have shown anti-cancer activity against various cancers including prostate cancer. In combination, Taxotere plus Capecitabine has demonstrated higher anti-cancer activity in advanced breast cancers. However, the molecular mechanisms of action of Taxotere and Capecitabine have not been fully elucidated in prostate cancer. Methods The total RNA from PC3 and LNCaP prostate cells untreated and treated with 2 nM Taxotere, 110 μM Furtulon (active metabolite of Capecitabine), or 1 nM Taxotere plus 50 μM Furtulon for 6, 36, and 72 hours, was subjected to Affymetrix Human Genome U133A Array analysis. Real-time PCR and Western Blot analysis were conducted to confirm microarray data. Results Taxotere and Furtulon down-regulated some genes critical for cell proliferation, cell cycle progression, transcription factor, cell signaling, and oncogenesis, and up-regulated some genes related to the induction of apoptosis, cell cycle arrest, and differentiation in both cell lines. Taxotere and Furtulon also up-regulated some genes responsible for chemotherapeutic resistance, suggesting the induction of cancer cell resistance to these agents. Conclusions Taxotere and Furtulon caused the alternation of a large number of genes, many of which may contribute to the molecular mechanisms by which Taxotere and Furtulon inhibit the growth of prostate cancer cells. This information could be utilized for further mechanistic research and for devising optimized therapeutic strategies against prostate cancer.
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Affiliation(s)
- Yiwei Li
- Departments of Pathology and Internal Medicine, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
| | - Maha Hussain
- Division of Hematology/Oncology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Sarah H Sarkar
- Departments of Pathology and Internal Medicine, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
| | - James Eliason
- Departments of Pathology and Internal Medicine, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
| | - Ran Li
- Departments of Pathology and Internal Medicine, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
| | - Fazlul H Sarkar
- Departments of Pathology and Internal Medicine, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
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Vaishampayan UN, Heilbrun LK, Eliason J, Pontes E, Forman J, Cher M. Phase II trial of weekly docetaxel and capecitabine in advanced renal cell carcinoma. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.4672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | - L. K. Heilbrun
- Wayne State University/Karmanos Cancer Institute, Detroit, MI
| | - J. Eliason
- Wayne State University/Karmanos Cancer Institute, Detroit, MI
| | - E. Pontes
- Wayne State University/Karmanos Cancer Institute, Detroit, MI
| | - J. Forman
- Wayne State University/Karmanos Cancer Institute, Detroit, MI
| | - M. Cher
- Wayne State University/Karmanos Cancer Institute, Detroit, MI
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Santner SJ, Dawson PJ, Tait L, Soule HD, Eliason J, Mohamed AN, Wolman SR, Heppner GH, Miller FR. Malignant MCF10CA1 cell lines derived from premalignant human breast epithelial MCF10AT cells. Breast Cancer Res Treat 2001; 65:101-10. [PMID: 11261825 DOI: 10.1023/a:1006461422273] [Citation(s) in RCA: 309] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The MCF10 series of cell lines was derived from benign breast tissue from a woman with fibrocystic disease. The MCF10 human breast epithelial model system consists of mortal MCF10M and MCF10MS (mortal cells grown in serum-free and serum-containing media, respectively), immortalized but otherwise normal MCF10F and MCF10A lines (free-floating versus growth as attached cells), transformed MCF10AneoT cells transfected with T24 Ha-ras, and premalignant MCF10AT cells with potential for neoplastic progression. The MCF10AT, derived from xenograft-passaged MCF10-AneoT cells, generates carcinomas in approximately 25% of xenografts. We now report the derivation of fully malignant MCF10CA1 lines that complete the spectrum of progression from relatively normal breast epithelial cells to breast cancer cells capable of metastasis. MCF10CA1 lines display histologic variations ranging from undifferentiated carcinomas, sometimes with focal squamous differentiation, to well-differentiated adenocarcinomas. At least two metastasize to the lung following injection of cells into the tail vein; one line grows very rapidly in the lung, with animals moribund within 4 weeks, whereas the other requires 15 weeks to reach the same endpoint. In addition to variations in efficiency of tumor production, the MCF10CA1 lines show differences in morphology in culture, anchorage-independent growth, karyotype, and immunocytochemistry profiles. The MCF10 model provides a unique tool for the investigation of molecular changes during progression of human breast neoplasia and the generation of tumor heterogeneity on a common genetic background.
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Affiliation(s)
- S J Santner
- Barbara Ann Karmanlos Cancer Institute, Detroit, MI 48201, USA
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Abstract
Small cell lung cancer (SCLC) cells express a variety of neuropeptides which act as autocrine growth factors. Although several neuropeptide analogs have been reported to antagonize SCLC proliferation, the development of these compounds has been limited by their low potency and the cytostatic nature of their effects. In the present study we evaluated the cytotoxic activity of four short-chain substance P analogs (NY3460, NY3238[-pHOPA], NY3238[Phe1], NY3238[Lys5]) against a panel of five SCLC cell lines. NY3460 was the most potent compound in all five SCLC cell lines (IC50 = 2.8-3.7 microM) as assessed by a MTT growth inhibitory assay. NY3238[Phe1] was also relatively active in all cell lines (IC50 = 3.5-11.2 microM), while NY3238[Lys5] and NY3238[-pHOPA] were substantially less active. NY3460 was the only agent to induce an increase in the percentage of cells with subdiploid DNA content suggestive of apoptosis by flow cytometric DNA content analysis. The induction of apoptosis was confirmed by fluorescent microscopy in NCI-H69, NCI-H82, NCI-H446, and NCI-H510 cells after exposure to 5.0 microM NY3460 for 48 h. These findings suggest that NY3460 is a relatively potent cytotoxic inhibitor of SCLC growth, and that short-chain neuropeptide analogs deserve further evaluation as anti-SCLC agents.
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Affiliation(s)
- R Rosati
- Division of Hematology and Oncology, Wayne State University and the Barbara Ann Karmanos Cancer Institute, Detroit, MI 48201, USA
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Abstract
The EORTC Preclinical Therapeutic Models Group (PTMG), formerly known as the Clonogenic Assay Screening Study Group (CASSG), began experiments in 1982 to investigate the feasibility of doing collaborative studies using in vitro clonogenic assays. The human colon adenocarcinoma cell line WiDr was selected as the model with which all participating laboratories would work. During the course of these studies, representatives from 34 different institutions located in 10 European countries participated. The first two collaborative experiments attempted to standardize the assay techniques using a double layer agar clonogenic assay. The results indicated that it was not possible to truly standardize these techniques in an international setting. The overall results demonstrated that the WiDr cell line grew well under a variety of conditions and that cloning efficiencies were independent of cell concentration, provided that a concentration of about 3,000 cells/ml was not exceeded. For the next series of protocols, the overall objectives were modified so that each laboratory could use its preferred assay technique whereas the WiDr cells were standardized by being expanded in a single center and sent to participants as viable cells. Analysis of the pooled results indicated that there was steady improvement in reproducibility for the group as a whole with repetition of the protocol. Drug dose responses with doxorubicin and etoposide showed good reproducibility from experiment to experiment. The results with cisplatin suggested that the sensitivity of this cell line may be affected by the presence of reduced sulfhydryl in some tissue culture media. The overall experience of the group indicates that use of a cancer cell line can provide the framework within which collaborative in vitro studies can be performed, provided that the initial conditions such as cell and drug concentrations are carefully determined in advance through preliminary studies.
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Affiliation(s)
- J Eliason
- Nippon Roche Research Center, Kanagawa, Japan
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Dittrich C, Dittrich E, Sevelda P, Hudec M, Salzer H, Grunt T, Eliason J. Clonogenic growth in vitro: an independent biologic prognostic factor in ovarian carcinoma. J Clin Oncol 1991; 9:381-8. [PMID: 1999707 DOI: 10.1200/jco.1991.9.3.381] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
A retrospective analysis was performed to investigate the prognostic value of growth in a human tumor clonogenic assay system for 84 ovarian cancer patients. A significant difference in survival probability (determined by the method of Kaplan-Meier) was found by univariate analysis between patients with ovarian carcinoma whose tumors manifested clonogenic growth (defined as growth of greater than or equal to five colonies per plate) and patients whose tumors did not grow. Clonogenic growth in vitro was associated with worse prognosis (P = .007, log-rank test). A number of generally accepted prognostic factors, International Federation of Gynecology and Obstetrics (FIGO) stage (P = .003), residual tumor mass (P less than .001), and grade (P = .011), were also of prognostic importance in our patient population. Multivariate analysis, based on the Cox regression model, identified clonogenic growth as a significant independent prognostic parameter in ovarian carcinoma (P = .031), in addition to the conventional risk factors. Estimation of survival of individual patients was best accomplished by combining the factors of residual tumor mass (P less than .05), age (P less than .01), and clonogenic growth (P less than .05) (in sequence of decreasing potential of risk).
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Affiliation(s)
- C Dittrich
- Department of Chemotherapy, University of Vienna, Austria
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Dittrich C, Dittrich E, Wrba F, Hudec M, Grunt T, Salzer H, Sevelda P, Eliason J. Analysis of factors influencing clonogenic growth in vitro of cells from ovarian carcinoma patients. Cancer Lett 1990; 50:183-9. [PMID: 2322932 DOI: 10.1016/0304-3835(90)90263-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Clonogenic growth (defined as the formation of greater than or equal to 5 colonies per 5 x 10(5) viable nucleated cells per plate) of ovarian cancer specimens assessed in our clonogenic assay system was significantly associated with the proportion of tumor cells in the suspensions plated (N = 87; P = 0.0006), although there was no quantitative relationship with the corresponding plating efficiencies. An inverse correlation was observed between monocytes/macrophages/mesothelial cells (M) proportion and clonogenic growth (P = 0.013). These associations were most evident when only effusions were considered. Univariate analyses identified tumor cell content, M proportion and, to a lesser degree, granulocyte content as the only factors out of 12 examined to be correlated with colony formation. Multivariate analysis using a logistic regression model identified the proportion of tumor cells as the only significant factor predicting clonogenic growth in vitro (P = 0.0006). The overall accuracy of prediction for growth or non-growth was 63.2%.
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Affiliation(s)
- C Dittrich
- Department of Chemotherapy, University of Vienna, Austria
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Abstract
Eikenella corrodens is a Gram-negative facultative anaerobe which is part of the normal human oropharyngeal flora and an opportunistic pathogen of mucous membrane tissues. We report a case of secondary E. corrodens ulcerative keratitis with hypopyon in a 39-year-old male with herpes simplex keratitis. To the best of our knowledge this is the first reported case of E. corrodens as a pathogen in bacterial keratitis.
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Affiliation(s)
- L Kelly
- Stanford University Division of Ophthalmology, California
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Goldwasser E, Kung CK, Eliason J. On the mechanism of erythropoietin-induced differentiation. 13. The role of sialic acid in erythropoietin action. J Biol Chem 1974; 249:4202-6. [PMID: 4368980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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Barker M, Hoshino T, Gurcay O, Wilson CB, Nielsen SL, Downie R, Eliason J. Development of an animal brain tumor model and its response to therapy with 1,3-bis(2-chloroethyl)-1-nitrosourea. Cancer Res 1973; 33:976-86. [PMID: 4703128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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