1
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Giddins GE, Sassi S. Distinct patterns of fracture propagation in distal radial fractures and the relationship to the ulnar head. Clin Biomech (Bristol, Avon) 2024; 115:106260. [PMID: 38714109 DOI: 10.1016/j.clinbiomech.2024.106260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 05/09/2024]
Abstract
BACKGROUND The aim was to assess the direction of distal radius fractures and their relationship to the ulnar head. METHODS We reviewed the 160 wrist radiographs. The fracture line was measured on the postero-anterior and lateral radiographs relative to the long axis of the forearm and the relationship to the ulnar head. FINDINGS PA radiographs: the fracture line ran distal ulnar to proximal radial (ulnar to radial) in 11%, transverse in 74% and distal radial to proximal ulnar (radial to ulnar) in 16%. Lateral radiographs: the fracture line ran distal volar to proximal dorsal in 88%, transverse in two 1% and dorsal to volar in 11%. Radial shift (7.5%) only occurred with ulnar to radial or transverse fractures. The ulnar to radial fracture line started at the proximal end of the ulnar head/distal radio-ulnar joint in 88%. The radial to ulnar fracture line started ended a mean of 2.5 mm proximal to the distal radio-ulnar joint (p < 0.01). The transverse fracture line started at the base of the distal radio-ulnar joint in 53% and proximally in 47%. INTERPRETATION There are two distinct coronal patterns: radial to ulnar ending c. 2 mm proximal to the distal radio-ulnar joint; ulnar to radial starting at the proximal distal radio-ulnar joint. There may be third pattern - transverse fractures; these may be variants of the above. Sagittally the main direction is volar to dorsal but 11% are obverse. This is the first description of distinct fracture patterns in extra-articular distal radius fractures. In addition the fracture patterns appear to correlate with different directions of force transmission which fit with our understanding of falling and the relatively uncontrolled impact of the wrist/hand with the ground. These patterns of fracture propagation help understand how the biomechanics of wrist fractures and may enable prediction of collapse.
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Affiliation(s)
- G E Giddins
- Orthopaedic Dept, Royal United Hospitals, Bath BA1 3NG, United Kingdom.
| | - S Sassi
- Orthopaedic Dept, Royal United Hospitals, Bath BA1 3NG, United Kingdom.
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2
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Chen J, Amoozgar Z, Liu X, Aoki S, Liu Z, Shin SM, Matsui A, Hernandez A, Pu Z, Halvorsen S, Lei PJ, Datta M, Zhu L, Ruan Z, Shi L, Staiculescu D, Inoue K, Munn LL, Fukumura D, Huang P, Sassi S, Bardeesy N, Ho WJ, Jain RK, Duda DG. Reprogramming the Intrahepatic Cholangiocarcinoma Immune Microenvironment by Chemotherapy and CTLA-4 Blockade Enhances Anti-PD-1 Therapy. Cancer Immunol Res 2024; 12:400-412. [PMID: 38260999 PMCID: PMC10985468 DOI: 10.1158/2326-6066.cir-23-0486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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] [Received: 06/11/2023] [Revised: 11/05/2023] [Accepted: 01/19/2024] [Indexed: 01/24/2024]
Abstract
Intrahepatic cholangiocarcinoma (ICC) has limited therapeutic options and a dismal prognosis. Adding blockade of the anti-programmed cell death protein (PD)-1 pathway to gemcitabine/cisplatin chemotherapy has recently shown efficacy in biliary tract cancers but with low response rates. Here, we studied the effects of anti-cytotoxic T lymphocyte antigen (CTLA)-4 when combined with anti-PD-1 and gemcitabine/cisplatin in orthotopic murine models of ICC. This combination therapy led to substantial survival benefits and reduction of morbidity in two aggressive ICC models that were resistant to immunotherapy alone. Gemcitabine/cisplatin treatment increased tumor-infiltrating lymphocytes and normalized the ICC vessels and, when combined with dual CTLA-4/PD-1 blockade, increased the number of activated CD8+Cxcr3+IFNγ+ T cells. CD8+ T cells were necessary for the therapeutic benefit because the efficacy was compromised when CD8+ T cells were depleted. Expression of Cxcr3 on CD8+ T cells is necessary and sufficient because CD8+ T cells from Cxcr3+/+ but not Cxcr3-/- mice rescued efficacy in T cell‒deficient mice. Finally, rational scheduling of anti-CTLA-4 "priming" with chemotherapy followed by anti-PD-1 therapy achieved equivalent efficacy with reduced overall drug exposure. These data suggest that this combination approach should be clinically tested to overcome resistance to current therapies in ICC patients.
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Affiliation(s)
- Jiang Chen
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Zohreh Amoozgar
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Immuno-oncology Research and Development, Sanofi, Cambridge, Massachusetts
| | - Xin Liu
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Center of Hepato-Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shuichi Aoki
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Department of Surgery, Tohoku Graduate School of Medicine, Sendai, Japan
| | - Zelong Liu
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Center of Hepato-Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Sarah M. Shin
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Aya Matsui
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Kanazawa University Institute of Medical, Pharmaceutical and Health Sciences Faculty of Medicine, Kanazawa, Japan
| | - Alexei Hernandez
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Zhangya Pu
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Xiangya Hospital, Central South University, Changsha, China
| | - Stefan Halvorsen
- Center of Computational and Integrative Biology (CCIB), Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Pin-Ji Lei
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Meenal Datta
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Department of Aerospace and Mechanical Engineering, College of Engineering, University of Notre Dame, Notre Dame, Indiana
| | - Lingling Zhu
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- West China Hospital of Sichuan University, Chengdu, China
| | - Zhiping Ruan
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Jiaotong University, Xi'an, China
| | - Lei Shi
- Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Daniel Staiculescu
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Koetsu Inoue
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Department of Surgery, Tohoku Graduate School of Medicine, Sendai, Japan
| | - Lance L. Munn
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Dai Fukumura
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Peigen Huang
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Slim Sassi
- Center of Computational and Integrative Biology (CCIB), Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Department of Orthopedics, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Nabeel Bardeesy
- Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Won Jin Ho
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Rakesh K. Jain
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Dan G. Duda
- Edwin L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
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3
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Liao Y, Sassi S, Halvorsen S, Feng Y, Shen J, Gao Y, Cote G, Choy E, Harmon D, Mankin H, Hornicek F, Duan Z. Author Correction: Androgen receptor is a potential novel prognostic marker and oncogenic target in osteosarcoma with dependence on CDK11. Sci Rep 2024; 14:1903. [PMID: 38253580 PMCID: PMC10803368 DOI: 10.1038/s41598-024-51815-z] [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: 01/24/2024] Open
Affiliation(s)
- Yunfei Liao
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, MA, USA
- Department of Endocrinology, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jie Fang Avenue, Wuhan, 430022, China
| | - Slim Sassi
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, MA, USA
- Center for Computational and Integrative Biology (CCIB), Massachusetts General Hospital, Boston, MA, 02139, USA
| | - Stefan Halvorsen
- Center for Computational and Integrative Biology (CCIB), Massachusetts General Hospital, Boston, MA, 02139, USA
| | - Yong Feng
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, MA, USA
- Department of Orthopaedic Surgery, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jie Fang Avenue, Wuhan, 430022, China
| | - Jacson Shen
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, MA, USA
| | - Yan Gao
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, MA, USA
| | - Gregory Cote
- Division of Hematology and Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA
| | - Edwin Choy
- Division of Hematology and Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA
| | - David Harmon
- Division of Hematology and Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA
| | - Henry Mankin
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, MA, USA
| | - Francis Hornicek
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, MA, USA
| | - Zhenfeng Duan
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, MA, USA.
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4
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Halvorsen SC, Benita Y, Hopton M, Hoppe B, Gunnlaugsson HO, Korgaonkar P, Vanderburg CR, Nielsen GP, Trepanowski N, Cheah JH, Frosch MP, Schwab JH, Rosenberg AE, Hornicek FJ, Sassi S. Transcriptional Profiling Supports the Notochordal Origin of Chordoma and Its Dependence on a TGFΒ1-TBXT Network. Am J Pathol 2023; 193:532-547. [PMID: 36804377 DOI: 10.1016/j.ajpath.2023.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 12/23/2022] [Accepted: 01/26/2023] [Indexed: 02/19/2023]
Abstract
Chordoma is a rare malignant tumor demonstrating notochordal differentiation. It is dependent on brachyury (TBXT), a hallmark notochordal gene and transcription factor, and shares histologic features and the same anatomic location as the notochord. In this study, we perform a molecular comparison of chordoma and notochord to identify dysregulated cellular pathways. The lack of a molecular reference from appropriate control tissue limits our understanding of chordoma and its relationship to notochord. Accordingly, we conducted an unbiased comparison of chordoma, human notochord, and an atlas of normal and cancerous tissue using gene expression profiling to clarify the chordoma/notochord relationship and potentially identify novel drug targets. We found striking consistency in gene expression profiles between chordoma and notochord, supporting the hypothesis that chordoma develops from notochordal remnants. We identified a 12-gene diagnostic chordoma signature and found that the TBXT/transforming growth factor (TGF)-β/SOX6/SOX9 pathway is hyperactivated in the tumor, suggesting that pathways associated with chondrogenesis are a central driver of chordoma development. Experimental validation in chordoma cells confirms these findings and emphasizes the dependence of chordoma proliferation and survival on TGF-β. Our computational and experimental evidence provides the first molecular connection between notochord and chordoma and identifies core members of a chordoma regulatory pathway involving TBXT. This pathway provides new therapeutic targets for this unique malignant neoplasm and highlights TGF-β as a prime druggable candidate.
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Affiliation(s)
- Stefan C Halvorsen
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts
| | - Yair Benita
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts
| | - Megan Hopton
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts
| | - Brooke Hoppe
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts
| | - Hilmar Orn Gunnlaugsson
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts
| | - Parimal Korgaonkar
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts
| | - Charles R Vanderburg
- Harvard NeuroDiscovery Center, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
| | - G Petur Nielsen
- Department of Pathology, Harvard Medical School, Massachusetts General Hospital, Boston, Massachusetts
| | - Nicole Trepanowski
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts
| | - Jaime H Cheah
- High Throughput Sciences Facility, Koch Institute of MIT, Cambridge, Massachusetts
| | - Matthew P Frosch
- C.S. Kubik Laboratory for Neuropathology, Massachusetts General Hospital, Charlestown, Massachusetts
| | - Joseph H Schwab
- Department of Orthopedic Surgery, Harvard Medical School, Massachusetts General Hospital, Boston, Massachusetts
| | - Andrew E Rosenberg
- Department of Pathology, Harvard Medical School, Massachusetts General Hospital, Boston, Massachusetts
| | - Francis J Hornicek
- Department of Orthopedic Surgery, Harvard Medical School, Massachusetts General Hospital, Boston, Massachusetts.
| | - Slim Sassi
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts; Department of Orthopedic Surgery, Harvard Medical School, Massachusetts General Hospital, Boston, Massachusetts.
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5
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Aoki S, Inoue K, Klein S, Halvorsen S, Chen J, Matsui A, Nikmaneshi MR, Kitahara S, Hato T, Chen X, Kawakubo K, Nia HT, Chen I, Schanne DH, Mamessier E, Shigeta K, Kikuchi H, Ramjiawan RR, Schmidt TCE, Iwasaki M, Yau T, Hong TS, Quaas A, Plum PS, Dima S, Popescu I, Bardeesy N, Munn LL, Borad MJ, Sassi S, Jain RK, Zhu AX, Duda DG. Placental growth factor promotes tumour desmoplasia and treatment resistance in intrahepatic cholangiocarcinoma. Gut 2022; 71:185-193. [PMID: 33431577 PMCID: PMC8666816 DOI: 10.1136/gutjnl-2020-322493] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 12/21/2020] [Accepted: 12/27/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Intrahepatic cholangiocarcinoma (ICC)-a rare liver malignancy with limited therapeutic options-is characterised by aggressive progression, desmoplasia and vascular abnormalities. The aim of this study was to determine the role of placental growth factor (PlGF) in ICC progression. DESIGN We evaluated the expression of PlGF in specimens from ICC patients and assessed the therapeutic effect of genetic or pharmacologic inhibition of PlGF in orthotopically grafted ICC mouse models. We evaluated the impact of PlGF stimulation or blockade in ICC cells and cancer-associated fibroblasts (CAFs) using in vitro 3-D coculture systems. RESULTS PlGF levels were elevated in human ICC stromal cells and circulating blood plasma and were associated with disease progression. Single-cell RNA sequencing showed that the major impact of PlGF blockade in mice was enrichment of quiescent CAFs, characterised by high gene transcription levels related to the Akt pathway, glycolysis and hypoxia signalling. PlGF blockade suppressed Akt phosphorylation and myofibroblast activation in ICC-derived CAFs. PlGF blockade also reduced desmoplasia and tissue stiffness, which resulted in reopening of collapsed tumour vessels and improved blood perfusion, while reducing ICC cell invasion. Moreover, PlGF blockade enhanced the efficacy of standard chemotherapy in mice-bearing ICC. Conclusion PlGF blockade leads to a reduction in intratumorous hypoxia and metastatic dissemination, enhanced chemotherapy sensitivity and increased survival in mice-bearing aggressive ICC.
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Affiliation(s)
- Shuichi Aoki
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA,Surgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Koetsu Inoue
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA,Surgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Sebastian Klein
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA,Pathology, University Hospital Cologne, Cologne, Nordrhein-Westfalen, Germany
| | - Stefan Halvorsen
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Jiang Chen
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA,General Surgery, Zhejiang University, Hangzhou, Zhejiang, China
| | - Aya Matsui
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Mohammad R Nikmaneshi
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Shuji Kitahara
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA,Anatomy and Developmental Biology, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
| | - Tai Hato
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA,Thoracic Surgery, Saitama Medical University, Iruma-gun, Saitama, Japan
| | - Xianfeng Chen
- Oncology, Mayo Clinic Arizona, Scottsdale, Arizona, USA
| | - Kazumichi Kawakubo
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Hadi T Nia
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA,Bioengineering, Boston University, Boston, Massachusetts, USA
| | - Ivy Chen
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA,Research, STIMIT Corporation, Cambridge, Massachusetts, USA
| | - Daniel H Schanne
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Emilie Mamessier
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA,Molecular Oncology, Cancer Research Center, Marseille, France
| | - Kohei Shigeta
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA,Surgery, Keio University Hospital, Shinjuku-ku, Tokyo, Japan
| | - Hiroto Kikuchi
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA,Surgery, Keio University Hospital, Shinjuku-ku, Tokyo, Japan
| | - Rakesh R Ramjiawan
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Tyge CE Schmidt
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Masaaki Iwasaki
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Thomas Yau
- Medicine, University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Theodore S Hong
- Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Alexander Quaas
- Pathology, University Hospital Cologne, Cologne, Nordrhein-Westfalen, Germany
| | - Patrick S Plum
- Department of General, Visceral and Cancer Surgery, University of Cologne, Koln, Nordrhein-Westfalen, Germany
| | - Simona Dima
- Center of Digestive Diseases and Liver Transplantation, Clinical Institute Fundeni, Bucuresti, Romania
| | - Irinel Popescu
- Center of Digestive Diseases and Liver Transplantation, Clinical Institute Fundeni, Bucuresti, Romania
| | - Nabeel Bardeesy
- Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Lance L Munn
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | | | - Slim Sassi
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts, USA,Orthopedics, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Rakesh K. Jain
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Andrew X Zhu
- Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA,Jiahui International Cancer Center, Jiahui Health, Shanghai, China
| | - Dan G Duda
- Radiation Oncology/Steele Laboratories for Tumor Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
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6
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Sharifnia T, Wawer MJ, Chen T, Huang QY, Weir BA, Sizemore A, Lawlor MA, Goodale A, Cowley GS, Vazquez F, Ott CJ, Francis JM, Sassi S, Cogswell P, Sheppard HE, Zhang T, Gray NS, Clarke PA, Blagg J, Workman P, Sommer J, Hornicek F, Root DE, Hahn WC, Bradner JE, Wong KK, Clemons PA, Lin CY, Kotz JD, Schreiber SL. Small-molecule targeting of brachyury transcription factor addiction in chordoma. Nat Med 2019; 25:292-300. [PMID: 30664779 PMCID: PMC6633917 DOI: 10.1038/s41591-018-0312-3] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 11/26/2018] [Indexed: 12/17/2022]
Abstract
Chordoma is a primary bone cancer with no approved therapy1. The identification of therapeutic targets in this disease has been challenging due to the infrequent occurrence of clinically actionable somatic mutations in chordoma tumors2,3. Here we describe the discovery of therapeutically targetable chordoma dependencies via genome-scale CRISPR-Cas9 screening and focused small-molecule sensitivity profiling. These systematic approaches reveal that the developmental transcription factor T (brachyury; TBXT) is the top selectively essential gene in chordoma, and that transcriptional cyclin-dependent kinase (CDK) inhibitors targeting CDK7/12/13 and CDK9 potently suppress chordoma cell proliferation. In other cancer types, transcriptional CDK inhibitors have been observed to downregulate highly expressed, enhancer-associated oncogenic transcription factors4,5. In chordoma, we find that T is associated with a 1.5-Mb region containing 'super-enhancers' and is the most highly expressed super-enhancer-associated transcription factor. Notably, transcriptional CDK inhibition leads to preferential and concentration-dependent downregulation of cellular brachyury protein levels in all models tested. In vivo, CDK7/12/13-inhibitor treatment substantially reduces tumor growth. Together, these data demonstrate small-molecule targeting of brachyury transcription factor addiction in chordoma, identify a mechanism of T gene regulation that underlies this therapeutic strategy, and provide a blueprint for applying systematic genetic and chemical screening approaches to discover vulnerabilities in genomically quiet cancers.
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Affiliation(s)
| | | | - Ting Chen
- New York University Langone Medical Center, New York, NY, USA
| | - Qing-Yuan Huang
- New York University Langone Medical Center, New York, NY, USA
- Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Barbara A Weir
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Janssen R&D, Cambridge, MA, USA
| | - Ann Sizemore
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
- University of Pennsylvania, Philadelphia, PA, USA
| | - Matthew A Lawlor
- Dana-Farber Cancer Institute, Boston, MA, USA
- Massachusetts General Hospital, Charlestown, MA, USA
| | - Amy Goodale
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Glenn S Cowley
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Janssen R&D, Spring House, PA, USA
| | | | - Christopher J Ott
- Dana-Farber Cancer Institute, Boston, MA, USA
- Massachusetts General Hospital, Charlestown, MA, USA
| | - Joshua M Francis
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Gritstone Oncology, Cambridge, MA, USA
| | - Slim Sassi
- Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | | | | | | | | | - Paul A Clarke
- Cancer Research UK Cancer Therapeutics Unit, The Institute of Cancer Research, London, UK
| | - Julian Blagg
- Cancer Research UK Cancer Therapeutics Unit, The Institute of Cancer Research, London, UK
| | - Paul Workman
- Cancer Research UK Cancer Therapeutics Unit, The Institute of Cancer Research, London, UK
| | | | - Francis Hornicek
- Massachusetts General Hospital, Boston, MA, USA
- UCLA Medical Center, Santa Monica, CA, USA
| | - David E Root
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - William C Hahn
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Dana-Farber Cancer Institute, Boston, MA, USA
| | - James E Bradner
- Dana-Farber Cancer Institute, Boston, MA, USA
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Kwok K Wong
- New York University Langone Medical Center, New York, NY, USA
| | | | | | - Joanne D Kotz
- Broad Institute of Harvard and MIT, Cambridge, MA, USA.
- Jnana Therapeutics, Boston, MA, USA.
| | - Stuart L Schreiber
- Broad Institute of Harvard and MIT, Cambridge, MA, USA.
- Harvard University, Cambridge, MA, USA.
- Howard Hughes Medical Institute, Chevy Chase, MD, USA.
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7
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Della Gala G, Ferrari S, Filippi P, Gavioli S, Pomarico S, Sassi S, Chiesi M, Burani A, Rivetti S. 289 Dosimetric characterization of a 2D digital mammography (2DDM) unit equipped with narrow-angle and wide-angle digital breast tomosynthesis (DBT). Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.298] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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8
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Abassi M, El Ati J, Sassi S, Ben Gharbia H, Delpeuch F, Traissac P. Gender inequalities in diet quality and their socioeconomic patterning in a nutrition transition context in North Africa. Rev Epidemiol Sante Publique 2018. [DOI: 10.1016/j.respe.2018.05.311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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9
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Agrafiotis AC, Sassi S, Giol M, Le Roux M, Assouad J. [A chest radiography not compatible with life, but…]. Rev Pneumol Clin 2018; 74:56-57. [PMID: 29133021 DOI: 10.1016/j.pneumo.2017.09.006] [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] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 09/30/2017] [Indexed: 06/07/2023]
Affiliation(s)
- A C Agrafiotis
- Service de chirurgie thoracique, hôpital Tenon, AP-HP, 4, rue de la Chine, 75020 Paris, France.
| | - S Sassi
- Service de chirurgie thoracique, hôpital Tenon, AP-HP, 4, rue de la Chine, 75020 Paris, France
| | - M Giol
- Service de chirurgie thoracique, hôpital Tenon, AP-HP, 4, rue de la Chine, 75020 Paris, France
| | - M Le Roux
- Service de chirurgie thoracique, hôpital Tenon, AP-HP, 4, rue de la Chine, 75020 Paris, France
| | - J Assouad
- Service de chirurgie thoracique, hôpital Tenon, AP-HP, 4, rue de la Chine, 75020 Paris, France
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10
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Sassi S, Agrafiotis AC, Assouad J. [Pneumomediastinum after cocaine use: A case report]. Rev Pneumol Clin 2017; 73:210-211. [PMID: 28756004 DOI: 10.1016/j.pneumo.2017.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 05/31/2017] [Accepted: 06/02/2017] [Indexed: 06/07/2023]
Affiliation(s)
- S Sassi
- Service de chirurgie thoracique, hôpital Tenon, AP-HP, 4, rue de la Chine, 75020 Paris, France
| | - A C Agrafiotis
- Service de chirurgie thoracique, hôpital Tenon, AP-HP, 4, rue de la Chine, 75020 Paris, France.
| | - J Assouad
- Service de chirurgie thoracique, hôpital Tenon, AP-HP, 4, rue de la Chine, 75020 Paris, France
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11
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Kefi A, Sassi S, Hamzaoui M, Zribi S, Krimi B, Ben Abdelhafidh N, Touinsi H. Thrombose cœlio-mésentérique compliquée d’une gastrite emphysémateuse. Rev Med Interne 2017. [DOI: 10.1016/j.revmed.2017.03.148] [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: 10/19/2022]
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12
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Liao Y, Sassi S, Halvorsen S, Feng Y, Shen J, Gao Y, Cote G, Choy E, Harmon D, Mankin H, Hornicek F, Duan Z. Androgen receptor is a potential novel prognostic marker and oncogenic target in osteosarcoma with dependence on CDK11. Sci Rep 2017; 7:43941. [PMID: 28262798 PMCID: PMC5338289 DOI: 10.1038/srep43941] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 01/05/2017] [Indexed: 12/31/2022] Open
Abstract
Osteosarcoma is the most common bone cancer in children and adolescents. Previously, we have found that cyclin-dependent kinase 11 (CDK11) signaling was essential for osteosarcoma cell growth and survival. Subsequently, CDK11 siRNA gene targeting, expression profiling, and network reconstruction of differentially expressed genes were performed between CDK11 knock down and wild type osteosarcoma cells. Reconstructed network of the differentially expressed genes pointed to the AR as key to CDK11 signaling in osteosarcoma. CDK11 increased transcriptional activation of AR gene in osteosarcoma cell lines. AR protein was highly expressed in various osteosarcoma cell lines and patient tumor tissues. Tissue microarray analysis showed that the disease-free survival rate for patients with high-expression of AR was significantly shorter than for patients with low-expression of AR. In addition, AR gene expression knockdown via siRNA greatly inhibited cell growth and viability. Similar results were found in osteosarcoma cells treated with AR inhibitor. These findings suggest that CDK11 is involved in the regulation of AR pathway and AR can be a potential novel prognostic marker and therapeutic target for osteosarcoma treatment.
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Affiliation(s)
- Yunfei Liao
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, Massachusetts 02114USA
- Department of Endocrinology, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jie Fang Avenue, Wuhan, 430022, China
| | - Slim Sassi
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, Massachusetts 02114USA
- Center for Computational and Integrative Biology (CCIB), Massachusetts General Hospital, Boston, Massachusetts 02139USA
| | - Stefan Halvorsen
- Center for Computational and Integrative Biology (CCIB), Massachusetts General Hospital, Boston, Massachusetts 02139USA
| | - Yong Feng
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, Massachusetts 02114USA
- Department of Orthopaedic Surgery, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jie Fang Avenue, Wuhan, 430022, China
| | - Jacson Shen
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, Massachusetts 02114USA
| | - Yan Gao
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, Massachusetts 02114USA
| | - Gregory Cote
- Division of Hematology and Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
| | - Edwin Choy
- Division of Hematology and Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
| | - David Harmon
- Division of Hematology and Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
| | - Henry Mankin
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, Massachusetts 02114USA
| | - Francis Hornicek
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, Massachusetts 02114USA
| | - Zhenfeng Duan
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, Massachusetts 02114USA
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13
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Sassi S, Abassa M, Traissac P, Gartner A, Delpeuch F, Ati JE. Double charge familiale du surpoids et de la carence en fer : ampleur et caractéristiques. Grand Tunis, Tunisie. Rev Epidemiol Sante Publique 2016. [DOI: 10.1016/j.respe.2016.06.264] [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: 10/21/2022] Open
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14
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Bouyrie Y, Sassi S, Candolfi C, Vaney JB, Dauscher A, Lenoir B. Thermoelectric properties of double-substituted tetrahedrites Cu12−xCoxSb4−yTeyS13. Dalton Trans 2016; 45:7294-302. [DOI: 10.1039/c6dt00564k] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work reports on a detailed study of the thermoelectric properties of the double-substituted tetrahedrites Cu12−xCoxSb4−yTeyS13 in a wide range of temperatures (5–700 K) with a peak ZT of 0.8 at 700 K.
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Affiliation(s)
- Y. Bouyrie
- Institut Jean Lamour
- UMR 7198 CNRS – Université de Lorraine
- 54011 Nancy
- France
| | - S. Sassi
- Institut Jean Lamour
- UMR 7198 CNRS – Université de Lorraine
- 54011 Nancy
- France
| | - C. Candolfi
- Institut Jean Lamour
- UMR 7198 CNRS – Université de Lorraine
- 54011 Nancy
- France
| | - J.-B. Vaney
- Institut Jean Lamour
- UMR 7198 CNRS – Université de Lorraine
- 54011 Nancy
- France
| | - A. Dauscher
- Institut Jean Lamour
- UMR 7198 CNRS – Université de Lorraine
- 54011 Nancy
- France
| | - B. Lenoir
- Institut Jean Lamour
- UMR 7198 CNRS – Université de Lorraine
- 54011 Nancy
- France
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15
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Feng Y, Sassi S, Shen JK, Yang X, Gao Y, Osaka E, Zhang J, Yang S, Yang C, Mankin HJ, Hornicek FJ, Duan Z. Targeting CDK11 in osteosarcoma cells using the CRISPR-Cas9 system. J Orthop Res 2015; 33:199-207. [PMID: 25348612 PMCID: PMC4304907 DOI: 10.1002/jor.22745] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Accepted: 09/02/2014] [Indexed: 02/04/2023]
Abstract
Osteosarcoma is the most common type primary malignant tumor of bone. Patients with regional osteosarcoma are routinely treated with surgery and chemotherapy. In addition, many patients with metastatic or recurrent osteosarcoma show poor prognosis with current chemotherapy agents. Therefore, it is important to improve the general condition and the overall survival rate of patients with osteosarcoma by identifying novel therapeutic strategies. Recent studies have revealed that CDK11 is essential in osteosarcoma cell growth and survival by inhibiting CDK11 mRNA expression with RNAi. Here, we apply the Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-Cas9 system, a robust and highly efficient novel genome editing tool, to determine the effect of targeting endogenous CDK11 gene at the DNA level in osteosarcoma cell lines. We show that CDK11 can be efficiently silenced by CRISPR-Cas9. Inhibition of CDK11 is associated with decreased cell proliferation and viability, and induces cell death in osteosarcoma cell lines KHOS and U-2OS. Furthermore, the migration and invasion activities are also markedly reduced by CDK11 knockout. These results demonstrate that CRISPR-Cas9 system is a useful tool for the modification of endogenous CDK11 gene expression, and CRISPR-Cas9 targeted CDK11 knockout may be a promising therapeutic regimen for the treatment of osteosarcoma.
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Affiliation(s)
- Yong Feng
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, Massachusetts 02114,Department of Orthopaedic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jie Fang Avenue, Wuhan, China, 430022
| | - Slim Sassi
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114
| | - Jacson K Shen
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, Massachusetts 02114
| | - Xiaoqian Yang
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, Massachusetts 02114
| | - Yan Gao
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, Massachusetts 02114
| | - Eiji Osaka
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, Massachusetts 02114
| | - Jianming Zhang
- Cutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School Boston, MA, 02114
| | - Shuhua Yang
- Department of Orthopaedic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jie Fang Avenue, Wuhan, China, 430022
| | - Cao Yang
- Department of Orthopaedic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jie Fang Avenue, Wuhan, China, 430022
| | - Henry J. Mankin
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, Massachusetts 02114
| | - Francis J Hornicek
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, Massachusetts 02114
| | - Zhenfeng Duan
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Jackson 1115, Boston, Massachusetts 02114
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16
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Sahnoun L, Ksia A, Kechich N, Sassi S, Hidouri S, Laamiri R, Belhassan S, Krichen I, Mekki M, Belghith M, Nouri A. SFCP CO-76 - Place du traitement chirurgical dans l’hyperinsulinisme congénital persistant. Arch Pediatr 2014. [DOI: 10.1016/s0929-693x(14)71714-2] [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: 11/28/2022]
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17
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Aljafil R, Emaetig F, Sassi S, El Hasad I, El Gehani K, El-Fituri O, Buhmeida A, Sheriff D, Elzagheid A. P0167 E-cadherin expression in libyan patients with colorectal carcinoma. Eur J Cancer 2014. [DOI: 10.1016/j.ejca.2014.03.211] [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: 11/16/2022]
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18
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Mehri I, Sassi S. La région mammaire : zone donneuse et généreuse de greffe cutanée. Ann Dermatol Venereol 2013. [DOI: 10.1016/j.annder.2013.04.033] [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: 10/26/2022]
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19
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Mehri I, Bchir K, Mighri M, Sassi S. La graisse faciale : surveillée ou courtisée. Ann Dermatol Venereol 2013. [DOI: 10.1016/j.annder.2013.03.019] [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: 10/26/2022]
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20
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Mehri I, Bchir K, Mighri M, Sassi S. Anatomie de la région labiale et mécanisme de son vieillissement. Ann Dermatol Venereol 2013. [DOI: 10.1016/j.annder.2013.03.018] [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: 11/29/2022]
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21
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Mejri N, Sellami R, Doghri R, Charfi L, Sassi S, Driss M, Mrad K, Mezlini A, Ben Romdhane K. La surexpression du Her2 dans le carcinome urothéliale invasif : aspects anatomopathologiques. Ann Pathol 2012. [DOI: 10.1016/j.annpat.2012.09.058] [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: 11/24/2022]
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22
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Nasfi A, Abbes I, Dhouib R, Doghri R, Charfi L, Mrad K, Sassi S, Driss M, Jomaa W, Nechi S, Khcherem N, Kacem D, Bouguila H, Ben Romdhane K. Facteurs histopronostiques du rétinoblastome chez l’enfant tunisien : à propos de 85 cas. Ann Pathol 2012. [DOI: 10.1016/j.annpat.2012.09.081] [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: 11/30/2022]
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23
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Liu X, Nielsen GP, Rosenberg AE, Waterman PR, Yang W, Choy E, Sassi S, Yang S, Harmon DC, Yang C, Schwab JH, Kobayashi E, Mankin HJ, Xavier R, Weissleder R, Duan Z, Hornicek FJ. Establishment and characterization of a novel chordoma cell line: CH22. J Orthop Res 2012; 30:1666-73. [PMID: 22504929 DOI: 10.1002/jor.22113] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Accepted: 03/08/2012] [Indexed: 02/04/2023]
Abstract
Chordoma is a rare primary malignant bone tumor and there exist only a few established human chordoma cell lines. The scarcity of robust chordoma cell lines has limited the ability to study this tumor. In this report, we describe the establishment of a novel chordoma cell line and characterize its in vitro and in vivo behaviors. The tumor tissue was isolated from a patient with recurrent chordoma of the sacrum. After 6 months in culture, the chordoma cell line, referred here as CH22, was established. Microscopic analysis of two-dimensional culture confirmed that the CH22 cells exhibited a typical vacuolated cytoplasm similar to the well-established chordoma cell line U-CH1. Electron microscopy showed cohesive cells with numerous surface filopodia, pockets of glycogen and aggregates of intermediate tonofilaments in cytoplasm. Three-dimensional culture revealed that the CH22 cells could grow and form clusters by day 8. The MTT assays demonstrated that, compared with sensitive osteosarcoma cell lines, CH22 cells were relatively resistant to conventional chemotherapeutic drugs. Western blotting and immunofluorescence analysis confirmed that the CH22 cells expressed brachyury, vimentin, and cytokeratin. Finally, histological analysis of CH22 xenograft tumor tissues demonstrated the appearance of physaliphorous cells and positive staining of brachyury, cytokeratin, and S100. By CT and MRI, imaging xenografts showed the typical appearances seen in human chordomas. These findings suggest that the established novel human chordoma cell line CH22 and its tumorigenecity in SCID nude mice may serve as an important model for studying chordoma cell biology and the development of new therapeutic modalities.
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Affiliation(s)
- Xianzhe Liu
- Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
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24
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Bouland C, Delhaye M, Kudiatu Tekadiabanza M, Sassi S, Dewolf M. Qualité de l’air et santé : premiers résultats dans des écoles belges francophones. Rev Epidemiol Sante Publique 2012. [DOI: 10.1016/j.respe.2012.06.235] [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: 10/28/2022] Open
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25
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Ferchichi I, Sassi S, Baccar A, Marrakchi R, Cremet JY, Prigent C, Benromdhane K, Benammarelgaaied A. L’expression de la protéine Aurora-A dans le cancer du sein : un outil de diagnostic précoce ? Ann Pathol 2011. [DOI: 10.1016/j.annpat.2011.09.082] [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: 10/15/2022]
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26
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Biondo A, Pedersen J, Karapanagiotou E, Tunariu N, Mansfield D, Sassi S, Corral J, Yap T, de Bono J, Harrington K. 1258 POSTER Phase I Clinical Trial of a Genetically Modified Oncolytic Vaccinia Virus GL-ONC1 With Green Fluorescent Protein Imaging. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)70870-x] [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] [Indexed: 11/25/2022]
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27
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Pedersen JV, Karapanagiotou EM, Biondo A, Tunariu N, Puglisi M, Denholm KA, Sassi S, Mansfield D, Yap TA, De Bono JS, Harrington KJ. A phase I clinical trial of a genetically modified and imageable oncolytic vaccinia virus GL-ONC1 with clinical green fluorescent protein (GFP) imaging. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.2577] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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28
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Ferrari A, Ferrara C, Balugani M, Sassi S. Severe scoliosis in neurodevelopmental disabilities: clinical signs and therapeutic proposals. Eur J Phys Rehabil Med 2010; 46:563-580. [PMID: 21224789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Scoliosis is an important cause of disability in childhood, due to its incidence and limitation on ability. In neurodevelopmental disabilities, scoliosis worsens the already limited functional capacities of the child and can thwart abilities partially recovered through rehabilitation. In celebral palsied children (CP), scoliosis is considered a consequence of damage to the central nervous system or a complication of a peripheral impairment, in particular, through obliquity of pelvis, of the unilateral dislocation of hip. In order to explain the scoliosis of central origin, primitive and pathological reflexes, reactions or automatisms must be taken into account, especially the asymmetrical ones. This contradicts the absence of scoliosis in hemiplegia. On the contrary, symmetrical patterns should act as protective factors. However, the greater incidence of scoliosis in tetraplegia than in dipegia does not confirm this idea. Scoliosis is secondary when it is linked to an unilateral hip dislocation for side of convexity, proximity, measure and timing sequence. In childhood neuromuscular diseases (NMD), scoliosis is the unavoidable consequence of muscle weakness. The only protective factor may be muscle stiffness in case of fibrotic degeneration. The main curve is reducible for longer periods, while the less reducible secondary one at cervical level can limit the correction possibilities, due to the need to keep the head aliened. In spina bifida (SB) children, lesional and supralesional scoliosis can be present. In the former, the malformative ones directly derive from the vertebrae involved in the myelomeningocele and the secondary ones develop from the unilateral hip dislocation similar to CP, or from muscular imbalance (a typical feature of SB, especially for lower lumbar levels) or from primitive skeletal malformations of pelvic girdle or lower limbs. The acquired ones are caused by muscle weakness as in NMD. In the supralesional scoliosis, the curve is the consequence of an impairment in neurological structures especially of ponto-cerebellar carrefour or of an acquired tethered cord and may affect any segment of spinal column, also above the primitive lesion level. The scoliosis in neurodevelopmental disabilities can be treated conservatively with corsets and postural systems, with limited results. or through a surgical approach, often made difficult due to the multiple impairments present in the same patient.
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Affiliation(s)
- A Ferrari
- Department of Neuroscience, University of Modena and Reggio Emilia, Modena, Italy.
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29
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Vitfell-Pedersen J, Karapanagiotou E, Alam S, Puglisi M, Britton L, Sassi S, Mansfield D, Yap T, De-Bono J, Harrington K. 45 Preliminary results of a phase 1 study of intravenous administration of GL-ONC1 vaccinia virus including green-fluorescent protein real time imaging in patients with advanced cancer. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)71750-x] [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: 10/18/2022] Open
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30
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Driss M, Abbes I, Mrad K, Sassi S, Oubich F, Barsaoui S, Romdhane KB. Primary CD30/ALK-1 positive anaplastic large cell lymphoma of the skeletal muscle in a child. Pathologica 2009; 101:97-100. [PMID: 19886557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
Anaplastic large cell lymphoma (ALCL) represents approximately 10 to 30% of all childhood non-Hodgkin lymphomas. It frequently involves both lymph nodes and extranodal sites whereas primary or secondary muscular involvements are quite uncommon. We describe a case of an 8-year-old boy presented with one month progressively swelling right buttock mass without association of lymphadenopathy or skin extension. Biopsy of the lesion showed large anaplastic cells with voluminous and abundant cytoplasm as well as folded nuclei. The tumour cells were positive for CD30, CD3, EMA and ALK-1. Chemotherapy resulted in durable remission status. This case emphasizes the occurrence of anaplastic large cell lymphoma in the soft tissue and the favourable outcome of ALK-positive anaplastic large cell lymphoma.
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Affiliation(s)
- M Driss
- Department of Pathology, Salah Azaïz Institute, Bab Saadoun, Tunis, Tunisia.
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31
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Doghri R, Mrad K, Driss M, Sassi S, Abbes I, Dhouib R, Hechiche M, Romdhane KB. Endometrial stromal sarcoma presenting as a cystic abdominal mass. Pathologica 2009; 101:93-96. [PMID: 19886556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
Endometrial stromal sarcoma (ESS) is rarely localized in extrauterine sites if metastasis or local extension of the primary uterine tumour are excluded, and diagnosis can be delayed because of the unusual site. We report a case of abdominal ESS in a 45-year-old woman who presented with an abdominal complaint. Ultrasound of the abdomen showed a large multiloculated cystic mass. The complete excision of the tumour revealed ESS arising in endometriosis. The tumour expressed hormonal receptors and the patient was administered hormonal therapy. ESS has a better prognosis than the sarcoma that is part of differential diagnosis, and is associated with endometriosis in about one-half of cases.
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Affiliation(s)
- R Doghri
- Pathology Department of Salah Azaiez Institute, Bab Saadoun, Tunis, Tunisia.
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Garavelli L, Zollino M, Mainardi PC, Gurrieri F, Rivieri F, Soli F, Verri R, Albertini E, Favaron E, Zignani M, Orteschi D, Bianchi P, Faravelli F, Forzano F, Seri M, Wischmeijer A, Turchetti D, Pompilii E, Gnoli M, Cocchi G, Mazzanti L, Bergamaschi R, De Brasi D, Sperandeo M, Mari F, Uliana V, Mostardini R, Cecconi M, Grasso M, Sassi S, Sebastio G, Renieri A, Silengo M, Bernasconi S, Wakamatsu N, Neri G. Mowat-Wilson syndrome: Facial phenotype changing with age: Study of 19 Italian patients and review of the literature. Am J Med Genet A 2009; 149A:417-26. [DOI: 10.1002/ajmg.a.32693] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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33
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Khaled A, Sassi S, Fazaa B, Ben Hassouna J, Ben Romdhane K, Kamoun MR. Primary cutaneous marginal zone B-cell lymphoma: clinical and histological aspects. Pathologica 2009; 101:18-20. [PMID: 19771768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
According to the WHO-EORTC classification of cutaneous lymphomas, primary cutaneous marginal zone B-cell lymphoma are now well characterized. We report here a case of primary cutaneous marginal zone B-cell lymphoma in a 51 year-old man in which the diagnosis was made using both histology and immunopathology. The patient had no remarkable medical history, no history of either acute inflammation or insect bite, and presented with a 5 cm solitary asymptomatic erythematous firm, multinodular and infiltrated plaque on the back for 12 months. Histological examination and immunohistochemical study of a cutaneous biopsy provided a differential diagnosis between B cell lymphoma and lymphocytoma cutis. Full body work up revealed no signs of extracutaneous dissemination. The patient underwent surgical excision of the nodule. Histological examination showed a histological and immunophenotyping profile typical of primary cutaneous marginal zone B-cell lymphoma. The lesion was completely excised with clear margins and no recurrence occurred after a 12 month-follow-up period. Primary cutaneous marginal zone B-cell lymphoma are low-grade lymphomas that have an indolent course and a high tendency to recur. They should be differentiated from lymphocytoma cutis and from the other types of cutaneous B cell lymphomas that have a different course and prognosis.
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Affiliation(s)
- A Khaled
- Department of Dermatology, Charles Nicolle Hospital, Tunis, Tunisia.
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Tangour-Bouaicha M, Ben Brahim E, Zidi YSH, Bel Haj Salah M, Zouaoui T, Sassi S, Chatti-Dey S. [Squamous cell carcinoma arising in a mature cystic teratoma: report of one case]. Tunis Med 2008; 86:941-942. [PMID: 19472821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
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35
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Dey SC, Tangour M, Ben Brahim E, Saiji E, Zidi Y, Ben Othmen M, Ben Abdelkader A, Sassi S, Azzouz M, Touinsi H. [The juvenile familial polyposis]. Tunis Med 2008; 86:848-849. [PMID: 19472795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
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36
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Driss M, Limaiem F, Mrad K, Charfi L, Abbes I, Sassi S, Hechiche M, Saadi A, Ben Romdhane K. [Malignant degeneration of benign cystic teratoma of the ovary with synchronous mediastinal teratoma. A case report]. Rev Med Interne 2008; 30:369-71. [PMID: 18722037 DOI: 10.1016/j.revmed.2008.06.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2007] [Revised: 04/15/2008] [Accepted: 06/24/2008] [Indexed: 10/21/2022]
Abstract
Squamous cell carcinoma arising in mature cystic teratoma of the ovary is an uncommon complication occurring usually in elderly woman. We present an unusual case of a post-menopausal woman with a synchronous mediastinum teratoma. While ovary tumor was symptomatic, mediastinal teratoma was an incidental finding. To the best of our knowledge, this association is the first to be reported in literature.
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Affiliation(s)
- M Driss
- Service d'anatomie et cytologie pathologiques, institut Salah Azaiez, 1006 Bab Saadoun, Tunis, Tunisie.
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Dhouib RS, Sassi S, Jbeli A, Driss M, Mrad K, Abbes I, Ben Romdhane K. Desmoplastic spitz nevus: report of a case and review of the literature. Pathologica 2008; 100:181-184. [PMID: 18841824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
Desmoplastic spitz nevus (DSN) is an uncommon melanocytic lesion. The histologic features of this benign tumour may mimic those of certain benign (dermatofibroma and desmoplastic cellular blue nevus) or malignant (metastatic carcinoma and malignant melanoma) neoplasms. We report the case of a male with a DSN, and also review the clinical characteristics, histologic features and differential diagnosis of this extremely rare lesion. The lesion is identified as an asymptomatic reddish-brown dome-shaped papule on the forearm. Microscopic examination showed a symmetric lesion in the dermis. The neoplastic cells were large and epithelioid-shaped, and were either isolated as individual cells or arranged in small nests in a paucicellular hyalinized stroma. Nuclei were large and vesicular with small nucleoli and no mitoses. Diffuse expression of S100 and the absence of staining with antibodies to melan-A and HMB45 was observed. A diagnosis of DSN with free margins was made. The histologic presentation of this benign lesion mimics both benign and malignant neoplasms. The immunohistochemical profile (S100 positive, HMB-45 negative and cytokeratin negative) may be helpful to differentiate it from other lesions.
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Affiliation(s)
- R Sellami Dhouib
- Histopathology Department, Salah Azaïez Institute, Tunis, Tunisia.
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Cioni G, Lodesani M, Pascale R, Coluccini M, Sassi S, Paolicelli PB, Perazza S, Ferrari A. The term diplegia should be enhanced. Part II: contribution to validation of the new rehabilitation oriented classification. Eur J Phys Rehabil Med 2008; 44:203-211. [PMID: 18418340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Recent proposals of classification for cerebral palsy (CP), mainly revised for epidemiological purposes, suggest to abandon the use of the term diplegia. Conversely, in this paper data are presented to support the proposal to maintain the distinction between spastic tetraplegia and diplegia, and to subdivide this latter according to four main clinical patterns of walking observable in these children. This proposal of classification was validated by testing a group of 467 subjects with CP, of whom 213 with diplegia and 115 with tetraplegia, consecutively admitted between January 2005 and December 2006 to two national reference centers for this disability. The results were compared with findings obtained by other methods of classifying gross and fine motor function and associated disorders. The subjects with tetraplegia strongly differ from those of diplegia, both for motor functions and for other disabilities. The four main walking patterns of spastic diplegia were easily recognizable and observers were able to assign most of the subjects to one form of the classification. Significant correlations between walking forms of diplegia and distribution of Gross Motor Function Classification System (GMFCS) levels were found. Some of the forms significantly differ also for fine motor and mental disability. These findings suggest that in clinical practice the category of diplegia not only can be kept as a separate form of CP, but it may be enhanced, through the identification of different subcategories of children, divided according to their walking patterns.
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Affiliation(s)
- G Cioni
- Department of Developmental Neuroscience, IRCCS Stella Maris, Pisa
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Charfi L, Mrad K, Sellami R, Driss M, Sassi S, Abbes I, Ben Romdhane K. Invasive mucinous carcinoma arising within breast fibroadenoma. Pathologica 2008; 100:199-201. [PMID: 18841829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
Malignant neoplasms arising in the epithelial component of breast fibroadenomas are rare. The most frequent types are lobular and ductal intra-epithelial carcinomas, with a minority of infiltrating carcinoma. We report a case of 36-year-old patient with invasive mucinous carcinoma (30 x 30 mm) arising in a complex breast fibroadenoma (130 x 60 x 30 mm). The patient underwent mastectomy with dissection of the axillary lymph nodes, which were free of tumour. The patient is alive without disease five years later. To the best of our knowledge, this is the first report of an invasive mucinous carcinoma arising within breast fibroadenoma. Our case provides information about the clinicopathologic characteristic of this unusual tumour.
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Affiliation(s)
- L Charfi
- Department of Pathology, "Salah Azaiez" Institute, 1006 Tunis, Tunisia.
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Abbes I, Mrad K, Driss M, Sassi S, Dhouib R, Ben Romdhane K. Smooth muscle differentiation in ovarian granulosa-cell tumours: a new case report. Pathologica 2008; 100:6-8. [PMID: 18686518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
Smooth muscle differentiation in stromal ovarian tissue has rarely been described in normal and tumoural ovaries, especially in granulosa-cell tumours. A moderately differentiated adult granulosa-cell tumour in an 83-year-old-woman is reported. Tumoural stroma included clusters of regular smooth muscle cells stained positively for smooth muscle actin. The presence of smooth muscle differentiation in an ovarian granulosa-cell tumour should be taken into consideration during diagnosis.
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Affiliation(s)
- I Abbes
- Department of Cytology and Surgical Pathology, Salah Azaiez Institute, Bab Saadoun, 1006 Tunis, Tunisia.
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Abbes I, Sassi S, Dhouib R, Mrad K, Driss M, Limaiem F, Ben Romdhane K. Small cell malignant melanoma: an unusual morphologic variant. Pathologica 2007; 99:431-433. [PMID: 18416335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
Small cell melanoma is a recognized rare variant of malignant melanoma. We report a case of a brown, ulcerated papule on the left third finger of an 80-year-old woman. Microscopic examination revealed the presence within the epidermis of diffuse sheets of monomorphic small to medium-sized cells. The nuclei were round or oval, and hyperchromatic with inconspicuous nucleoli. Melanin pigment was either absent or minimal. This case report draws attention to the difficulties encountered in the histological diagnosis of this rare variant of malignant melanoma.
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Affiliation(s)
- I Abbes
- Department of Cytology and Surgical Pathology, Salah Azaiez Institute, Bab Saadoun, Tunis, Tunisia.
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Bacha D, Mrad K, Dhouib R, Driss M, Abbes I, Sassi S, Ben Romdhane K. Paraganglioma: report of a rare case with ovarian involvement. Pathologica 2007; 99:50-3. [PMID: 17633808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023] Open
Abstract
We report a well-documented case of paraganglioma involving right ovary, which was initially misdiagnosed as a Sertoli-Leydig cell tumor and recurred one year later. The right ovarian tumor measured 105x90x60 mm and was associated to a subdiaphragmatic tumor measuring 80x60x35 mm, a peritoneal and a preureteral nodules measuring 10 mm either. Microscopically, tumor cells were arranged in trabeculae and cords separated by a delicate stroma. Their cytoplasm was abundant granular and eosinophilic. Their nuclei were enlarged and regular in size with coarse chromatine and a large nucleolus. The tumor expressed neuroendocrine markers (chromogranin, synaptophysin) epithelial membrane antigen and focally cytokeratin 7 and E-cadherin. Pathological ovarian paraganglioma diagnosis could be difficult but one should be aware of its bona fide existence. The clinical course is favourable in most of the cases.
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Affiliation(s)
- D Bacha
- Pathology Department, Salah Azaiez Institute, Bab Saadoun, Tunis, Tunisia.
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Sassi S, Maalej M, Gargouri W, Doghri R, Mrad K, Driss M, Abbes I, Dhouib R, Ben Romdhane K. La cytoponction des tumeurs cutanées malignes : étude de 25 cas. Ann Pathol 2006. [DOI: 10.1016/s0242-6498(06)78535-2] [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: 10/22/2022]
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44
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Driss M, Mrad K, Dhouib R, Abbes I, Doghri R, Ben Slama S, Ben Ghorbel R, Sassi S, Ben Romdhane K. Les carcinomes micropapillaires du sein : étude anatomoclinique d’une série de 21 cas. Ann Pathol 2006. [DOI: 10.1016/s0242-6498(06)78521-2] [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: 11/16/2022]
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45
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Zidi-mouaffak Y, Bel Haj Salah M, Ben Brahim E, Kilani H, Makhlouf R, Sassi S, Chatti-dey S. Carcinome sébacé développé sur un kyste dermoïde de l’ovaire. À propos d’un cas avec revue de la littérature. Ann Pathol 2006. [DOI: 10.1016/s0242-6498(06)78509-1] [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: 11/29/2022]
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46
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Kmrad K, Elloumi H, Driss M, Abbes I, Sassi S, Kacem D, Jaafoura M, Ben Romdhane K. Les tumeurs mucineuses primitives de l’ovaire : étude des cytokératines 7 et 20. Ann Pathol 2006. [DOI: 10.1016/s0242-6498(06)78510-8] [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: 10/22/2022]
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Charfi L, Mrad K, Karray S, Sassi S, Driss M, Abbes I, Ben Romdhane K. [Epithelioid hemangioendothelioma of bone complicated by femoral fracture]. ACTA ACUST UNITED AC 2006; 91:788-91. [PMID: 16553002 DOI: 10.1016/s0035-1040(05)84491-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 11/30/2022]
Abstract
A 54-year-old man was seen with a fracture of the left femur. Plain radiographs revealed a 40-mm lytic centromedullary lesion. Magnetic resonance T1- and T2-weighted sequences showed high and low signals. After stabilization of the fracture, the tumor was removed followed by reconstruction with a vascularized fibula. The pathological examination demonstrated proliferation of non atypical CD34 and CD31 positive epithelioid cells with few lumens, accompanied by abundant fibrous stroma, sometimes masking tumor cells. Satisfactory motion was achieved with no recurrence at 20 months follow-up. Bone hemangioendothelioma can simulate metastasis and must be distinguished by immunohistochemistry. Prognosis is a subject of debate as the tumor is considered to exhibit intermediate malignancy by some authors while other consider it to be a malignant tumor.
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Affiliation(s)
- L Charfi
- Service d'Anatomie et Cytologie Pathologique, Institut Salah-Azaiez, Tunis, Tunisie
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Dhouib RS, Driss M, Sassi S, Ben Alaya Y, Abbes I, Mrad K, Kacem D, Ben Romdhane K. Myxoid tumor of soft tissue. Pathologica 2006; 98:175-7. [PMID: 17036945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023] Open
Abstract
Focal myxoid change is a well-recognised feature of synovial sarcoma, but the presence of a predominantly myxoid stroma is rare. We describe a new case of myxoid synovial sarcoma in which marked myxoid change initially obscured the diagnosis leading to confusion with malignant peripheral nerve sheath tumor. The patient was a 16 year old man who presented with a left dorsal foot tumor. The diagnosis of synovial sarcoma was suspected on histological and immunohistochemical studies and confirmed with cytogenetic analysis. Recognition of this rare histologic variant of synovial sarcoma is important because it can easily be mistaken for other myxoid spindle cell neoplasms, potentially resulting in suboptimal therapy.
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Affiliation(s)
- R Sellami Dhouib
- Histopathology Department, Salah Azaïez Institute, Bab Saadoun, Tunis, Tunisia.
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Chatti Dey S, Guenni O, Ben Brahim E, Zouari B, Zouaoui T, Mighri M, Touinsi H, Sassi S, Azzouz M, Sabourin J. Les cancers colorectaux sporadiques : corrélation du phénotype MMR et du statut p 53 avec les caractéristiques anatomocliniques. À propos de 143 cas. Ann Pathol 2006. [DOI: 10.1016/s0242-6498(06)77311-4] [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: 11/16/2022]
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50
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Elloumi-Jellouli A, Triki S, Mrad K, Sassi S, Driss M, Abbes I, Ben Rhomdhane K. P127 - Lichen scléro-atrophique et carcinome épidermoïde vulvaire : 21 cas. Ann Dermatol Venereol 2005. [DOI: 10.1016/s0151-9638(05)79856-2] [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: 10/15/2022]
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